Fatore as expressões (agrupamento):
a) ac + bc + ad + bd
b) -3ax + ay + 3bx +by
c) 3ay - 3a + by -b
d) -5an + ay + 5bn + by
e) -8x - 3xy + 8 - 3y
a) ac + bc + ad + bd
b) -3ax + ay + 3bx +by
c) 3ay - 3a + by -b
d) -5an + ay + 5bn + by
e) -8x - 3xy + 8 - 3y
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Verified answer
(a)Basta agrupar os termos semelhantes:ac+ad+bc+bd
a(c+d)+b(c+d)
(c+d)(a+b)
(b)
-3ax+ay+3bx+by
y(a+b)-3ax+3bx
y(a+b)+3x(b-a)
(c)
3ay-3a+by-b
3a(y-1)+b(y-1)
(y-1)(3a+b)
(d)
-5an+ay+5bn+by
y(a+b)+5n(b-a)
e)
-8x-3xy+8-3y
8(-x+1)-3y(x+1)