Question

Factories the following using appropriate identities
(1) $16x^2$+ 24xy + $9y^2$

Answer 1

$16x^2+24xy+9y^2$
$=(4x{)}^2+(3y{)}^2+2\times 4x\times 3y$
$=(4x+3y{)}^2$
$Identityused\to (a+b{)}^2=a^2+2ab+b^2$