Answered

What is the completely factored form of x4 + 8x2 – 9?

Verified Answer :

x = 3 x = -3  x=  0.0000 - 1.0000 i 
  x=  0.0000 + 1.0000 i 

Answer:

(x+1)(x-1)(x^2+9)

the answer is B on Edge

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