Question

9 класс значение выражения

Answer 1

$\frac{5ac^{2} *(a-3c)}{(a-3c)(a+3c)*ac} = \frac{5c*1}{a+3} = \frac{5c}{a+3} \\ \\ \frac{5*(-3.6)}{8.3+3} = \frac{-18}{11.3} =-18:11 \frac{3}{10} =-18: \frac{113}{10} =- \frac{18*10}{113} =- \frac{180}{113} =-1 \frac{67}{113}$