Question

Fatore os polinômios
c) 4x – 8y + xz – 2yz
d) 9 – a2
e) 9a2 + 12a + 4

Answer 1

c) 4x -8y +xz -2yz
= x (4 + z) -2y (4 + z)
= (x -2y) (4 + z)

d) 9 - a^2
= (3 + a) (3 - a)

e) 9a^2 + 12a + 4
= (3a + 2)^2