Question

fatore os polinomios por agrupamento
ax+ay+7x+7y
2a+2n+ax+nx
ax+5bx+ay+5by
3a-3b+ax-bx

Answer 1

ax+ay+7x+7y
a(x+y)+7(x+y)
(x+y).(a+7)

2a+2n+ax+an
2(a+n)+x(a+n)
(a+n).(2+x)

ax+5bx+ay+5by
x(a+5b)+y(a+5b)
(a+5b).(x+y)

3a-3b+ax-bx
3(a-b)+x(a-b)
(a-b).(3+x)