math
posted by Aiten .
4 [(4x^2 + 4x)]^2 + 4(4x^2 + 4x)
I got up to:
16 ( 4x^4 + 8x^3 + 5x^2 + x)
Is this right and also the domain is X is all real numbers? (infinity, infinity)?

I could probably factor another x out:
16x ( 4x^3 + 8x^2 + 5x + 1)
So X  E R?
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