Question

Factorise the given question. I NEED HELP.​

Answer 1

9a^2+9b^2+6b+1

rearranging the terms.

(9a^2+6a+1)+(9b^2)

((3a^2)+(2×3a×1)+(1)^2)+(3b)^2

now the two term in the first brackets are in format (a+b)^2=3a^2+1^2+3b^2

now the two terms in separate brackets are in format(a^2+b^2) we will factories in the format ( (3a+1)^2+(2×3a+1×3b)+(3b^2)