Question

solve the following : (x+3y)^2​

Answer 1

$\underline {\huge\texttt{Answer}}$

(x+3y)²

=x²+(3y)²+2x*3y

=x²+9y²+6xy

$hope\: it \:help$

Answer 2

Solution :-

=> (x+3y)²

compare with

(ax+by)² = ax² + 2ab + c²

= x² + 6xy + 9y²

I hope it helps you....