Question

Спростити вираз: $( \frac{5}{x-1} -x-2) \frac{2-x}{x ^{2}-6x+9 }$ помогите

Answer 1

1)5/(x-1) -x -2=(5-x²+x-2x+2)/(x-1)=(-x²-x+7)/(x-1)=(x²+x-7)/(1-x)
2)(x²+x-7)/(1-x)*(2-x)/(x-3)²=(x²+x-7)(2-x)/(1-x)(x-3)²