计算[3(x-2)(x-3)-2(2x-1)(3x-2)+(3x+2)(x-7)]/(-4x)
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计算[3(x-2)(x-3)-2(2x-1)(3x-2)+(3x+2)(x-7)]/(-4x)
计算[3(x-2)(x-3)-2(2x-1)(3x-2)+(3x+2)(x-7)]/(-4x)
计算[3(x-2)(x-3)-2(2x-1)(3x-2)+(3x+2)(x-7)]/(-4x)
[3(x-2)(x-3)-2(2x-1)(3x-2)+(3x+2)(x-7)]/(-4x)
=[-6x^2-20x]/(-4x)
=(3/2)x+5
=(3(x^2-5x+6))-2(6x^2-7x+2)+3x^2-19x-14)/(-4x)
=(-6x^2-20x)/(-4x)
=(3/2)x+5
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