solve................
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Answer:
factorise-x³-2x²-x+2
Step-by-step explanation:
=x³-2x-x+2
=x²(x-2)-1(x-2)
=(x²-1)(x-2)
=1 can be Express as 1²
=(x²-1²)(x-2)
=[a²-b²=(a+b)(a-b)]
=(x-1)(x-1)(x-2)
=The factor of x³-2x²-x+2are
(x+1)(x-1)(2-x)
ans](x+1)(x-1)(2-x)
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