4-4x+x^2分之2x-6除以(x+3)乘以3-x分之x^2+x-6

问题描述:

4-4x+x^2分之2x-6除以(x+3)乘以3-x分之x^2+x-6

4-4x+x^2分之2x-6除以(x+3)乘以3-x分之x^2+x-6
=2(x-3)/(x-2)²×1/(x+3)×(x+3)(x-2)/(3-x)
=-2/(x-2)