3 years ago

Factor this polynomial completely over the set of complex numbers. x^3-x^2-4x+4

1 answer:

6 0

$x^3-x^2-4x+4 =\\
x^2(x-1)-4(x-1)=\\
(x^2-4)(x-1)=\\
(x-2)(x+2)(x-1)$

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