Question

fator comum com grupos (agrupamento)
a) ab+2b-6-3a
b) ax-bx+ay+by
c) mn+3n-9-3m
d) 4a(x-5y)-66(x-5y)+8(x-5y)

Answer 1

a)b(a+2)-3.(2+a)= (b-3)(a+2)
b)x(a-b)+y(a+b)
c)n(m+3)-3(3+m)= (n-3)(3+m)
d)(4a-58)(x-5y)