Question

Factorise:
(1) 4x2 +9y2 + 16z2 + 12xy - 24yz - 16xz

(i) 2x2 + y2 +872 - 272 xy + 4V2 yz - 8xz.​

Answer 1

Answer:

1.). (2x + 3y -4z)^2

Step-by-step explanation:

1.). (2x)^2 + (3y)^2 + (4z)^2 + 12xy - 24yz - 16xz

(2x)^2 + (3y)^2 + (-4z)^2 +12xy - 24yz - 16xz

(2x)^2 + (3y)^2 + (-4z)^2 + 2(2x)(3y) + 2(3y)(-4z) + 2(-4z)(2x)

(2x + 3y - 4z)^2