Question

Factor the following polynomial completely.

-x 2 y 2 + x 4 + 9y 2 - 9x 2

Answer 1

Try factoring by grouping. Group two terms together, make two such groups, and factor each group separately. What do you get?

Answer 2

\[-x^2y^2+x^4 + 9y^2-9x^2\]\[(-x^2y^2+x^4) + (9y^2-9x^2)\]What do you get if you factor \[(-x^2y^2+x^4)\]?
What do you get if you factor \[(9y^2-9x^2)\]?

Answer 3

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

Answer 4

@whpalmer4

Answer 5

Yes, that's correct...