计算(3x³-2-5x)(6-7x+2x²)拜托了
2个回答
(3x³-5x-2)(2x²-7x+6)
=【(3x^3+3x^2)-(3x^2+3x)-(2x-2)】(2x-3)(x-2)
=(x+1)(2x-3)(x-2)(3x^2-3x-2)
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