Question

factorize 9-(a + b)2

Answer 1

${3}^{2} - {(a + b)}^{2} \\ = (3 + a + b)(3 - a - b)$

Answer 2

Hi

Well...your question is a bit wrong ..

It should be 9-(a+b)^2

Heres the factorization:
Let 9=(3)^2

Then,

(3)^2 -(a+b)^2

(3+a+b) (3-a+b).....[putting formulae (a^2 -b^2)

Ans will be (3+a+b) (3-a-b)☆




Hope it helps:-)