Question

1
Find all the real and imaginary solutions to the polynomial below.
4
(x2 – 20) (-3.x2 + 4x – 8)

Answer 1

im not sure if im suppose to simplify the expression or? but if i am the answer is - 3 x^4 + 4 x^3 + 52 x 2 - 80x + 160

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