Question

.Using the Identity (I), find

(3x+2y)

2​

Answer 1

‣ Correct question :

$\sf {Find \: (3x + 2y)^{2}}$

‣ Answer :

‣ To Find :

$\textsf {The resultant value}$

‣ Solution :

$\textsf {We know that,}$

$\fbox {\sf{(a + b)² = a² + 2ab + b²}}$

$\sf {Now,}$

→ $\sf {(3x + 2y)²} \: \: \: \: \: \: \: \: \: \: [ \because \textsf {Using identity}]$

→ $\sf {= \; (3x)² + (2 × 3x × 2y) + (2y)²}$

→ $\sf {= \; 9x² + 12xy + 4y²}$

$\implies \sf {\underline {Hence, \: the \: answer \: is \: 9x² + 12xy + 4y². }}$

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