Question

Найдите значение выражения

Answer 1

Ответ:

-0.6

Объяснение:

6+3d/c-4d²+6d/cd =6d+3d²-4d²-6d/cd= -d²/cd= -(1,2)²/2×1.2=-1.44/2.4=-0.6

Answer 2

$\frac{6+3d}{c}-\frac{4d^{2}+6d}{cd} =\frac{(6+3d)*d-4d^{2}-6d}{cd}=\frac{6d+3d^{2}-4d^{2}-6d}{cd}=-\frac{d^{2}}{cd}=-\frac{d}{c}\\\\c=2;d=1,2\\\\-\frac{d}{c}=-\frac{1,2}{2}=\boxed{-0,6}$