解不等式:log2 (x^2-x-2)>log2 (2X-2)tongshang
问题描述:
解不等式:log2 (x^2-x-2)>log2 (2X-2)
tongshang
答
x^2-x-2>2x-2
x^2-3x>0
x(x-3)>0
x3