Question

fatore as espressoes por agrupamento a)xy+x-2y-2 b)6x+6y+ax+ay c)2x-2+yx-y d)2a+2b+ax+bx

Answer 1

a)xy+x-2y-2
  x.(y+1)-2(y+1)
  (x-2)x(y+1)

b)6x+6y+ax+ay
  6(x+y)+ax(x+y)
   (6+a)x(x+y)

c)2x-2+yx-y
 2(x-1)+yx(x-1)
  (2+y)x(x-1)

d)2a+2b+ax+bx      
 2(a+b)+x.(a+b)
  (2+x)x(a+b)