SOLUTION: Use substitution to factor each polynomial completely x^4+x^2-12 Here is my work so far;y=x^2 y^2+y-12= (y+4)(y-3)=(x+2)^2(x^2-3) I am not sure if I have the right answer. Can y

Question 237266: Use substitution to factor each polynomial completely
x^4+x^2-12
Here is my work so far;y=x^2 y^2+y-12= (y+4)(y-3)=(x+2)^2(x^2-3)
I am not sure if I have the right answer. Can you check for me?
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
When you substitute back you should get (x^2+4)(x^2 -3)

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus
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