( -x^2 - 2x - 3) / (x + 3)怎么化简?

问题描述:

( -x^2 - 2x - 3) / (x + 3)怎么化简?

你打错了,没办法约分的.
-(x^2+2x-3)/(x+3)
=-(x+3)(x-1)/(x+3)
=-(x-1)
=1-x