Question

Найдите значение выражения (х+8):x^2+16x+64/x-8 при x=12

Answer 1

(x+8) :(x²+16x+64)/(x-8) =(x+8) :(x +8)²/(x -8) =(x +8) *(x -8)/(x+8)² =(x+8)(x -8) /(x+8)² =(x -8) /(x +8) =(12 -8) /(12 +8) =4/20 =1/5 =0.2

ответ: 0.2