anonymous
  • anonymous
\left( 3sqrt{10+4} \right)\left( 4sqrt{10-5} \right)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
\[\left( 3\sqrt{10+4} \right)\left( 4\sqrt{10-5} \right)\] simplify in radical expression.
myininaya
  • myininaya
3*4=12 10+4=14 10-5=5 14(5)=70 \[12\sqrt{70}\]
anonymous
  • anonymous
I tried that answer, not the right answer.

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myininaya
  • myininaya
it is the right answer
myininaya
  • myininaya
are you sure you type the question in correctly?
anonymous
  • anonymous
yes i am sure.
myininaya
  • myininaya
you are entering this into like a online quiz?
anonymous
  • anonymous
it has to simplified into radical form.
anonymous
  • anonymous
No, it's online hw.
anonymous
  • anonymous
It's the only one I can't get.
anonymous
  • anonymous
Would you like me to show you the practice question? and give you the answer?
myininaya
  • myininaya
you can if you want, but the above cannot be simplfied anymore since 70=2*5*7 there are no perfect squares in 70
anonymous
  • anonymous
\[\left( 2\sqrt{6+3} \right) \left( 3\sqrt{6-4} \right)\]
myininaya
  • myininaya
2(3)=6 6+3=9 6-4=2 6(3)sqrt(2) =18sqrt(2)
anonymous
  • anonymous
answer is 24+\[24+\sqrt{6}\]
anonymous
  • anonymous
Haha that's the answer it's giving me.
myininaya
  • myininaya
24+sqrt(6)?
anonymous
  • anonymous
Lol yea
myininaya
  • myininaya
so this is multiplication right? not addition or subtraction or division? it is definitely multplication, right?
anonymous
  • anonymous
multiplication for sure.
myininaya
  • myininaya
ask your teachers. these solutions don't make sense
myininaya
  • myininaya
there has to be a mistake or something
anonymous
  • anonymous
It's annoying me. I always get 100% on the hw. Except for this one.
anonymous
  • anonymous
It's due by midnight
myininaya
  • myininaya
you have class tomorrow?
myininaya
  • myininaya
does it show you how to work the problem, jason?
myininaya
  • myininaya
if it does, we can try to follow the logic of the problem they did and see if we can get the answer they are looking for even though it will not be correct
anonymous
  • anonymous
yea, but with weird examples that don't relate to it.
anonymous
  • anonymous
Hold on, lemme get that for you.
anonymous
  • anonymous
\[\left( \sqrt{5} +\sqrt{2}\right) \left( \sqrt{2} +3\right)\]
myininaya
  • myininaya
sqrt(5)sqrt(2)+sqrt(5)*3+sqrt(5)sqrt(2)+sqrt(2)3 =sqrt(10)+3sqrt(5)+sqrt(10)+2sqrt(2) =2sqrt(10)+3sqrt(5)+2sqrt(2)
anonymous
  • anonymous
answer is: \[\sqrt{10} +3\sqrt{5} + 2 + 3\sqrt{2}\]
myininaya
  • myininaya
yes i made a mistke up there one sec
myininaya
  • myininaya
sqrt(5)sqrt(2)+sqrt(5)3+sqrt(2)sqrt(2)+3sqrt(2) =sqrt(10)+3sqrt(5)+3sqrt(2)+2
myininaya
  • myininaya
so maybe our problem was suppose to look like this
anonymous
  • anonymous
What seems to be the problem then? :/
anonymous
  • anonymous
On that practice question, I don't get how they got 24 +(sqrt)6
myininaya
  • myininaya
ok lets pretend the problem was 3(sqrt(10)+4)2(sqrt(10)-5) 6(sqrt(10)+4)(sqrt(10)-5) 6(10-5sqrt(10)+4sqrt(10)-20) 60-sqrt(10)-20 40-sqrt(10 so this doesn't work
myininaya
  • myininaya
so what did it say we are suppose to get?
anonymous
  • anonymous
blank + (sqrt) blank
myininaya
  • myininaya
ok let's look at that second one and see if we can get they got by making a problem sortof like but in the form of the example you gave
anonymous
  • anonymous
the answer to that second one was 24+(sqrt)6
myininaya
  • myininaya
omg i figured out the problem they meant
anonymous
  • anonymous
....? :]
myininaya
  • myininaya
so they have (2sqrt(6)+3)(3sqrt(6)-4)=24+sqrt(6)
anonymous
  • anonymous
yea, how did you get that?
myininaya
  • myininaya
okay try to entrt 100+srt(10)
anonymous
  • anonymous
OMG!
anonymous
  • anonymous
Thank you. Please elaborate?
myininaya
  • myininaya
lol this is the problem they meant: (3sqrt(10)+4)(4sqrt(10)-5)
anonymous
  • anonymous
ohhhhh my god. really? I didn't even see that. I'm sorry.
myininaya
  • myininaya
how could you see it when it was written wrong or in the homework wrong
myininaya
  • myininaya
you should totally tell your teacher of this mistake
anonymous
  • anonymous
Thank you so much for the help, and I will do that. I have a quiz tmrw.
myininaya
  • myininaya
do you understand how i got the answers? i don't expect you to understand how i was able to make the problem correct lol

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