factorize x^3- 2x^2 -x+2
please explain and show
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factorize x^3- 2x^2 -x+2please explain and show
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Answer:
x³-2x²-x+2
x³-x²-x²+x-2x+2
x²(x-1)-x(x-1)-2(x-1)
(x-1)(x²-x-2)
(x-1)(x²-x+2x-2)
(x-1){x(x-1)+2(x-1)}
(x-1)(x-1)(x+2)
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