Question

найдите значения выражения

Answer 1

q(4q-p)/2p-0.5q=-3(4*(-3)-1.5)/2*(-1.5)-0.5*(-3)=-3(12-1.5)/-3+1.5=
-3*(-13.5)/-3+1.5=40.5/-3+1.5=-13.5+1.5=12

(c-d)²/c²-d²=(c-d)(c-d)/(c-d)(c+d)=c-d/c+d=(8/15-7/15)÷(8/15+7/15)=1/15÷1=1/15