Question

Упростите выражение

Answer 1

a) =4m^2-1-4m^2-5m=-(5m+1) b) 8(2x^2-3)-(1+4x)(4x-1)=16x^2-24-16x^2-1=-25 G) =100m^2-30m-70m+21+9-100m^2=30-100m=10(3-10m)