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Anonymous
No because the discriminant is less than zero.
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x2-8x+15 = (x-3)(x-5)
x2 + 48x + 320
(x-8)(x+8) = x2-64
x2-64 = (x-8)(x+8) when factored
If that's + 4x2, the answer is 2x(x2 + 2x - 4)