Question

(x+y+z)2 -(z)2
Resolve into factor using formula.​

Answer 1

Answer:

(x+y+z)²-(z)²

=(x+y+z+z)(x+y+z-z)

since, a²-b²=(a+b)(a-b)

=(x+y+2z)(x+y)

Hope it helps you!!!!

Answer 2

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

(x+y)(x+y+2z)

(x2+y2+2xy+2z)

(x+y)2+ 2z