计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
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计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7计算:(2x+3)(3x-4)>(x+1)(x-1)+5
计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
计算:(2x+3)(3x-4)>(x+1)(x-1)+5x(x+3)+7
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
6x^2+x-12>6x^2+15x+6
x-12>15x+6
14x<-18
x<-9/7
....X<-9/7
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