anonymous
  • anonymous
Factor 64x^2+25
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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mathmate
  • mathmate
This is of the form (a^2+b^2) for which there are no real/rational factors. Check the question carefully to see if there is a typo.
anonymous
  • anonymous
(8x+5)(8x-5)
LynFran
  • LynFran
is that ur answer? (8x+5)(8x-5) if so thats not correct since when we foil it out we will have 8x*8x+8x*-5+5*8x+5*-5 which gives 64x^2 -40x +40x -25 64x^2-25 ...

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More answers

anonymous
  • anonymous
Yeah I agree with @LynFran (8x+5)(8x−5) =(8x+5)(8x+−5) =(8x)(8x)+(8x)(−5)+(5)(8x)+(5)(−5) =64x^2−40x+40x−25 =64x^2−25
anonymous
  • anonymous
Hmmm...so what should I do?
anonymous
  • anonymous
Well, I don't think 64x^2+25 can be factored. Don't judge me...thats my perspective :|
anonymous
  • anonymous
What if we used the quad formula?
anonymous
  • anonymous
Hold on...let me solve it.
anonymous
  • anonymous
i got x=-5/8 or x=5/8
anonymous
  • anonymous
I got 64x^27 :O
anonymous
  • anonymous
Ugh! I don't know what to do haha
anonymous
  • anonymous
Are you sure this is the question? :O Even no calculator could solve it!
LynFran
  • LynFran
|dw:1439783529269:dw|
anonymous
  • anonymous
Yay! So, I was right?
anonymous
  • anonymous
Hehe!! :D Great job! :D
anonymous
  • anonymous
Thanks <3 for all your help guys :)
LynFran
  • LynFran
but it would be imaginary # though...
anonymous
  • anonymous
I know, but it's better than writing "no solution" or "can't be factored...."
LynFran
  • LynFran
lol

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