Question

(2+2d)/c-(4d^2+2d)/cd если с=6,d=6.

Answer 1

$\frac{2+2d}{c} - \frac{4d^2+2d}{cd} = \frac{2+2d}{c} - \frac{d(4d+2)}{cd} = \frac{2+2d-4d-2}{c} =- \frac{2d}{c} \\ \frac{-2*6}{6} =-2$