Question

fatore as contas abaixo

a) ax - y - x + ay

b) x² - 6x - 16

c) 4x² - 12x + 9

d) (m + 10)(m - 10)

e) 36a² + 60ab + 25b²​

Answer 1

a) ax - y - x + ay = a(x+y) -1(x+y)= (a-1).(x+y)

b) x² - 6x - 16 = (x-8).(x+2)

c) 4x² - 12x + 9 = (2x -3)²

d) (m + 10)(m - 10) = m² - 100

e) 36a² + 60ab + 25b² = (6a + 5b)²