Question

Уравнение
(5m+2)(4-2m)-(6-10m)(m+2)=11

Answer 1

(5m+2)(4-2m)-(6-10m)(m+2)=11
20m-10m2+8-4m-(6m+12-10m2-20m)=11
20m-10m2+8-4m-6m-12+10m2+20m=11
20m+8-4m-6m-12+20m=11
30m+8-12=11
30m=11-8+12
30m=15
m=15/30
m=1/2
m=0,5