Question

Factor the following polynomial completely.

-x^2y^2 + x4 + 9y^2 - 9x^2

(x - 3)(x - 3)(x + y)(x - y)
(x + 3)(x + 3)(x + y)(x - y)
(x + 3)(x - 3)(x + y)(x - y)

Answer 1

please need help

Answer 2

the easiest way to solve this if you dont know how to is to just multiply out every answer option given until you find the right one

Answer 3

ok

Answer 4

sorry, i hope that helps. I dont do well with these either so my teacher just told me to do that if i forget how to really solve it

Answer 5

ok thanks ill try

Answer 6

i got the third answer to be correct

Answer 7

\[x^4-x^2 y^2-9 x^2+9 y^2=(x-3) (x+3) (x-y) (x+y) \]