Question

Factor the following polynomial completely.

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

(x - 2)(x - 2)(x + y)(x - y)
(x + 2)(x + 2)(x + y)(x - y)
(x + 2)(x - 2)(x + y)(x - y)

Answer 1

-x^2y^2 + x^4 + 4y^2 - 4x^2

Separate into two parts to make simplification easier. Find the GCF of the values in each part.

-x^2 (y^2 - x^2) + 4 (y^2 - x^2)

Combine the factors and because the two in parenthesis are equal, eliminate one.

(-x^2 + 4) (y^2 - x^2)

Hope this helps!

Answer 2

Answer:The Answer is (y-x)(y+x)(x-2)(x+2) backwards it would be C

Step-by-step explanation: