Resposta :
a ) x² + 2xy + y² :
(x+y) . (x+y)
b ) x² - 2 xy + y² :
(x-y) . (x-y)
C) 4ax - 8 ay :
4a (x - 2y)
d ) ax - ay + 2x - 2y :
(x-y).(a+2)
valeu Pancho
a ) x² + 2xy + y² :
(x + y)^2
b ) x² - 2 xy + y² :
(x - y)^2
C) 4ax - 8 ay :
4a(x - 2y)
d ) ax - ay + 2x - 2y
a(x - y) +2(x - y)
(x - y)(a + 2)