(x+3)(x-7)+8>(x+5)(x-1)解
问题描述:
(x+3)(x-7)+8>(x+5)(x-1)解
答
原不等式等价于x^2-4x-13>x^2+4x-5
即8x
(x+3)(x-7)+8>(x+5)(x-1)解
原不等式等价于x^2-4x-13>x^2+4x-5
即8x