Question

Упростить выражение.

$frac{6c-c^2}{1-c} : frac{c^2}{1-c}$

Answer 1

$frac{6c-c^2}{1-c} : frac{c^2}{1-c} = frac{6c-c^2}{1-c} * frac{1-c}{c^2} = frac{c(6-c)(1-c)}{(1-c)c^2} = frac{6-c}{c} = frac{6}{c} -1$