答：
(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
6x^2+x-12>x^2-1+5x^2+15x+7
x-12>15x+6
15x-x
计算：(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
3个回答
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