Question

solve x^4-109x^2+900=0 a)3,-3,10,-10 this is the correct answer I just don't know how to do the problem work shown would be a huge help

Answer 1

Do u know the box and cross method

Answer 2

yep

Answer 3

So in ur problem, u are trying to look for two factors of 900 that also add up to -109

Answer 4

ok

Answer 5

Do u know what they are?

Answer 6

umm no

Answer 7

They are -9 and -100

-9(-100)=-900
-9+-100=-109

Answer 8

So the factored form would be (x^2-9)(x^2-100)

Answer 9

And u can simplify that even more

(X-3)(x+3)(x-10)(x+10)

Answer 10

And u should b able to find x. Are u ok with that^

Answer 11

yess thank you sooo much that is a huge help