Упростите выражение 5m+2/5m-2-5m-2/5m+2 20m/12-75m 2

Question

Упростите выражение 5m+2/5m-2-5m-2/5m+2 20m/12-75m 2

Comments

(5m+2/5m-2-5m-2/5m+2):20m/12-75m^2 простите ошибся вот так правильно

Answer 1

(5m+2)*(5m+2)-(5m-2)*(5m-2)/(5m+2)*(5m-2)/20m/(-3)*(25m-4)=(5m+2)^2-(5m-2)^2/(5m+2)*(5m-2)*(-3)*((5m-2)*(5m+2)/20m=(-3)*40m/20m=2*(-3)=-6