Question

algebric identiteis​

Answer 1

• Using the identity - (a+b)²= a²+b²+2ab

${(2 {m}^{2} + 3n) }^{2}$

$= {(2 {m}^{2} )}^{2} + {(3n)}^{2} + 2 \times 2 {m}^{2} \times 3n$

$= 4 {m}^{4} + 9 {n}^{2} + 12 {m}^{2} n$