Question

What is completely factored form of x^4+8x^2-9

Answer 1

Answer: B would be the correct answer on edg. (X+1)(x-1)(x^2+9)

Answer 2

X^4 + 8x^2 - 9 
= (x^2 + 9)(x^2 - 1)
= (x^2 + 9)(x + 1)(x - 1)  Answer