Question

a2 + 12ab + 27b2 please factor completely

Answer 1

break the middle term such like that their sum becomes \(12ab\) & product of \(a^2\) & \(27b^2\) .

\(a^2+9ab+3ab+27b^2\)
\(a(a+9b)+3b(a+9b)\)
\((a+3b)(a+9b)\)

Answer 2

thank you