Question

Exercícios
8) Fatore as expressões por agrupamento,
a) am + na + bm + bn =
b) xy - y2 + WX - W2 =
c) ax + bx + ay + by
d) 5ab + ac + 5bd + cd =
e) 7x + 7y + ax + ay =​

Answer 1

Resposta:

a) am + na + bm + bn =

a(m+n) + B(m + n) = (m +n)(a +b)

b) xy - y2 + WX - W2 =

y(x-z) + w(x-z)

(x-y)(y+w)

c)ax + bx + ay + by=

x(a + b) + y(a + b)

(a + b)(x + y)

d) 5ab + ac + 5bd + cd=

a(5b + c) + d(5b + c)

(5b + c)(a + d)

e)7x + 7y + ax + ay=

7(x + y) + a(x + y)

(x + y)(7 + a)

Explicação passo-a-passo: