Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

marsssBest ResponseYou've already chosen the best response.0
64s^2+144s+81=0 (8s+9)^2=0 8s+9=0 8s=9 s=9/8
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
@marsss Thank you for the setup
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
I think this problem is quadtradic
 one year ago

marsssBest ResponseYou've already chosen the best response.0
@godorovg you're a genius :)
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
so the solution set would be
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
in this problem the first clue is being = 0 usally says Quad needs to be used.
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
What is the easier way of working out qUADRATIC without using the quad formula?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
64^2 is a peferct square so that always tells that this will invole in a square root to slove
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
you could use a^2+B^2=c^2 as well
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
So I got 1.125, 1.125. Can I write 1.125^2. Or is this considered incorrect?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
yes you can do that with 1.125^2 if you used the Quad form you would plus ninus which is what the problem is asking for..
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
Ok i just wrote it twice. lets see if it counts it correct?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
treydwg first thing to know in this problem 64s^2+144s+81=0 all of the numbers are perfect squares. what that means taking the square root will be a number for example you take square root of 81 which is, we can check this by 9^2 and yes it equals 9.
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
what about 2v^2+7v+5 and I need tofactor by grouping?
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
I am at (2v^2+5v)(2v+5) and stuck
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
@godorovg can you assist?
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
where do I go from here?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
in this problem we need to use F,.O.I .L
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
so now take the 2v^2 and times to 2v what is the answer
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
4v is right your power is wrong
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
where are you getting the 2v^2*2v?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
because you typed 4v^2 while ago
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
recall the problem here (2v^2+5v)(2v+5)
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
the (2v+5) is where im stuck
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
what can I factor out of that?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
now 4v is right because 2v times 2v =4v^2 but that is not what is happening here. You have a power being times by V what is the power of the V? that power of the V is ^1 and when times 2v^2 time 2v = 4v^3
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
so what happened here is we times the 2's to get 4 and v^2 + v^1 =V^3 see that
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
let me look at that hold on
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
now how do I fix the last part?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
if you have a question plz ask me..
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
factoring will not be in use unti we finish F.O.I.L
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
I have (2v+5) how can I faactor this
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
no you can not factor that..
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
ok I see now so this is what I have after foil 4v^3+10v^2+35v
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
no grouping there are no a like terms here
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
I know but i was going to use 35v and try to make another number to group
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
okay let us look at this 4v^3+10v^2+35v what is the same with all the numbers?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
yes V so how many V's can be factored?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
now look at the numbers what can each number be divided by?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
that is the answer it can not be factored any further
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
ahhhhhhh! Thats my problem i want to always factor further :/
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
treydwg here is a help for you, if you have done all the factoring right than find a number that divides in to the first and see if it works for example 2 will go ino 4 =2 2 will also go into 10 five times but here is a question for you will 2 divide even into 35?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
if the answer is no than you are finished..
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
no it wont and that was my problem
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
before I leave any questions plz ask me
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
If you need help I am here
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
5x3=14x+6 get a like terms together so we x terms let us put the tgether like this 14x5x=63 recall when a + or  crosses the equals sign it changes
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
ok i did that one a little wrong thank you
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
now this one is throwing me off cuz the a^2 I have a^2=103a I got a^2=5/2
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
no now think about this one? come you do it!!
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
first off you can not a^2 = 10 3a and come out with a^2=5/2 no..
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
hint what happens to the problem when all nunbers are moved like this a^2+3a10= what is this problem?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
what did I say when a problem is set to zero is?
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
nothing is on one side
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
or they are all on one side rather
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
recall the problem a^2 = 10 3a now look at the problem a^2+3a10=
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
we have to find something in common
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
so what type of problem is this? not factoring
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
so i need to find out what two numbers product is 10 and sum is 3 right?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
yes but I will let you try this way.
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
awesome thank you again!
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
so the solution set is (a+5)(a2)?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
now I want you to check this
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
simply take this (a+5)(a2) use F.O.I.L and see if you get this back a^2+3a10=
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
if you do than you are right..
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
treydwg if you need help let me know..
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
now I got this one wrong? dont know why? r^2+2r48 I got (r+8)(r6)
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
sorry working on another one
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
which the  to 8 and try again
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
but 68 = 2 and not 2
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
that gives me a +48 and not 48
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
i am pretty sure im right but the computer counted it wrong??
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
treydwg is this a test?
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
yeah but I have three times to take
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
I can not figure this out and i know im right!
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
can you figure out why its wrong?
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
I have already taken the test. just reviewing results
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
okay that is better, I can get big trouble for helping on tests..
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
because you have taken it already no worries
 one year ago

treydwgBest ResponseYou've already chosen the best response.1
yes all done and really confused because my answers I beleive are correct. There are many more like that. Have you figured out why im wrong?
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
okay try 24 times and see what happens and work it again
 one year ago

godorovgBest ResponseYou've already chosen the best response.0
brb for me I have company over will back soon
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.