Question

(x-3)^2-16/x^2-8x+7 после сокр.примет вид. Распишите 

Answer 1

х2-6х+9-16х2-8х+7 =х2-6х-7х2-8х+7 = (х-7)*(х+1)(х-7)*(х-1)=х+1х-1

Answer 2

$frac{(x-3)^{2}-16}{x^{2}-8x+7} = frac{x^{2}-6x-7}{x^{2}-8x+7} = frac{(x-7)(x+1)}{(x-7)(x-1)} = frac{x+1}{x-1}$