Question

Упростить выражение.

Answer 1

...=(5-x^2+2x-2x+4)/(x-2) * (2-x)/(x^2+6x+9)=(9-x^2)/(x-2) * -(x-2)/(x+3)^2=-(x+3)(x-3)/(x+3)^2=(3-x)/(x+3)