anonymous
  • anonymous
12a^3-3a^2-5a+10/4a+3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
long division
anonymous
  • anonymous
i know u do this first |dw:1354757932663:dw|
anonymous
  • anonymous
4a^2-3 divided in to 12a^2-3a^2=3a

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anonymous
  • anonymous
ok lets do this step by step :D
anonymous
  • anonymous
ok
anonymous
  • anonymous
\[12a^3-3a^2-5a+10\div4a+3\]
anonymous
  • anonymous
3a^5
anonymous
  • anonymous
first whats 12a^3/4a ?
anonymous
  • anonymous
3a^2
anonymous
  • anonymous
yes correct :D now lets do the procedure as we are dividing numbers like in a regular way
anonymous
  • anonymous
|dw:1354759034295:dw|
anonymous
  • anonymous
yea i know that what it 6 or is it -6
anonymous
  • anonymous
ops -6
anonymous
  • anonymous
12a^3 -3a^2 -(12 a^3 +9a^2)=0 - 12a2 yes or no?
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok continue dividing that using the correct answer :D
anonymous
  • anonymous
so 12a^2-5a u need to use a 3a again
anonymous
  • anonymous
remember always use parenthesis so that you can remember your sign
anonymous
  • anonymous
yes correct use -3a
anonymous
  • anonymous
(-3a)|dw:1354760013653:dw|
anonymous
  • anonymous
- 12x^2 - 5x -( -12x^2 - 9x ) ---------------- 0 + 4x yes or no?
anonymous
  • anonymous
yes
anonymous
  • anonymous
your -9 became +9 correct? so -5a +9a= 4a
anonymous
  • anonymous
yes so we have 4a+10 left
anonymous
  • anonymous
yes continue doing division :D
anonymous
  • anonymous
1 * 4a+3
anonymous
  • anonymous
+ 4 a +10 -( 4a + 3 } --------------- 0 + 7=R
anonymous
  • anonymous
so the answer is 3a^2-3a+1 7/4a+3
anonymous
  • anonymous
yeahhh correct :D
anonymous
  • anonymous
it says it's wrong =(
anonymous
  • anonymous
you can re chack that by multiplying (4a^2 +3)(3a^2 -3x +1 + 7/(4x+3))
anonymous
  • anonymous
its the faction
anonymous
  • anonymous
fraction
anonymous
  • anonymous
will you pls check the real prob again is this it ? 12a^3-3a^2-5a+10/(4a+3)
anonymous
  • anonymous
yea thats it
anonymous
  • anonymous
is it -1
anonymous
  • anonymous
ok lets try multiplying them to check if we arrived on it
anonymous
  • anonymous
(4x+3)(3x^2 -3x +1 + 1/ (4x+3))
anonymous
  • anonymous
12a^3-12a^2+4
anonymous
  • anonymous
the R=7 therefore (im gonna use x instead of a here) :D (4x+3)(3x^2 -3x +1 + 7/ (4x+3)) =12x^3 +9x^2 -12x^2 - 9x +4x +3 +7 = 12x^3 -3x^2-5x +10 or = 12a^3 -3a^2-5a +10 correct ?
anonymous
  • anonymous
the last one is correct
anonymous
  • anonymous
ok R=7 maybe thats why its looks like its wrong in the beginning?
anonymous
  • anonymous
it need +7/4a+3
anonymous
  • anonymous
whats the answer in the book?
anonymous
  • anonymous
yes correct
anonymous
  • anonymous
ya but i ask it to many time so i got it wrong =(
anonymous
  • anonymous
i have till12 tonight to finish these problem i'm at a lot i only need 1.4% to pass this semester
anonymous
  • anonymous
the new problem is 9a^3-3a^2-3a+15/3a+2
anonymous
  • anonymous
got that one right =)
anonymous
  • anonymous
ok on that one whats the first guess?
anonymous
  • anonymous
9a^3 / 3a= ?
anonymous
  • anonymous
i got it right already i'm on 9b^2-6b-8/3b-1
anonymous
  • anonymous
i got so far on this one 3b is the first
anonymous
  • anonymous
ok
anonymous
  • anonymous
the answer i came up with is 3b-3b- 7/3b-1
anonymous
  • anonymous
nope :D
anonymous
  • anonymous
no its wrong =(
anonymous
  • anonymous
try again.... :D
anonymous
  • anonymous
oh 3b-1b-7/3b-1
anonymous
  • anonymous
-9/3b-1
anonymous
  • anonymous
hmm if your answer start with 3b the next to it must not have any more variable b because the polynomial like ax^5 +b x^4 +cx^3 +dx^2 +ex + f you are here -----> 3b +__? gets?
anonymous
  • anonymous
the power should be in ascending or descending order :D
anonymous
  • anonymous
thats right just 1
anonymous
  • anonymous
descending
anonymous
  • anonymous
ok good,, so whats your answer?
anonymous
  • anonymous
3b-1- 7/3b-1
anonymous
  • anonymous
hmm (3b-1)(3b-1)=?
anonymous
  • anonymous
i think you slipped on your R=? re check again on getting your R?
anonymous
  • anonymous
9b^2-3b-3b+2=== 9b^2+-6b+2
anonymous
  • anonymous
-8-(-1) =-7
anonymous
  • anonymous
-3b -8 -(-3b +1) ---------- 0 - ?
anonymous
  • anonymous
-9
anonymous
  • anonymous
i got it i got it =) thanks again
anonymous
  • anonymous
ok YW :D
anonymous
  • anonymous
i'm a slow learner and never did this in high school
anonymous
  • anonymous
ok now you are doing good.... it just takes practice :D
anonymous
  • anonymous
yea thank god this is my last semester in it......
anonymous
  • anonymous
no one is a slow learner... its just depend if you are interested to it before or now or then .. :D
anonymous
  • anonymous
i'm not i will not use this in my culinary classes at all!!!!!!!!!!!
anonymous
  • anonymous
ive seen that you are interested to it so i did show you step by step it doesnt mean you are slow learner.. its because you are now learning it or reviewing it ..............:D
anonymous
  • anonymous
can u help me with my last one
anonymous
  • anonymous
yes you will in finding the correct ratios of those thing you need to cook according to the recipe :D
anonymous
  • anonymous
3-5x^2/x+2
anonymous
  • anonymous
ok what is it
anonymous
  • anonymous
i know u have to do this -5x^2+0x+3/x+2
anonymous
  • anonymous
arrange them first in ascending order then divide
anonymous
  • anonymous
yes correct go ahjead and try that
anonymous
  • anonymous
ok i came up with -5x-10 -17/x-2
anonymous
  • anonymous
ops +10
anonymous
  • anonymous
and +17
anonymous
  • anonymous
yesssssssssssss correct..............:D
anonymous
  • anonymous
hmm not +17 :(
anonymous
  • anonymous
yes -5x+10 -17/x-2
anonymous
  • anonymous
no it says its wrong =(
anonymous
  • anonymous
.this is the correct prob 3-5x^2/x+2 tyhen it should be x+2
anonymous
  • anonymous
not x-2
anonymous
  • anonymous
it worked =)
anonymous
  • anonymous
ok always check the prob correctly thats the main key :D
anonymous
  • anonymous
ok good...... :D
anonymous
  • anonymous
i can see from now that youl be earning good money in your culinary class after graduating :D

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