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化简:(-4x+1)(2x+3)-(-8x)(x+1)
人气:353 ℃ 时间:2019-12-18 07:23:15
解答
(-4x+1)(2x+3)-(-8x)(x+1)
=-(4x-1)(2x+3)+8x(x+1)
=-(8x^2+10x-3)+8x^2+8
=-8x^2-10x+3+8x^2+8
=-10x+11
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