Question

1-fatore as expressões por agrupamento

a) xy+x-2y-2

b) 6x+6y+ax+ah

c) 2x-2+yx-u

d) 2a+2b+ax+bx

Answer 1

A) x (y +1) . -2(y +1)
= (x -2) . (y +1)

B) 6(x +y) . a(x + h)

C) 2( x - 1) + xy - u

D) 2(a + b) + x(a + b)
= (a + b) . (2 + x)