Question

expand the follwing expression by using identities. (5x+3)^2

Answer 1

$\textbf{\huge\underline{\underline\red{solution} : - }} \\ \\ \tt \purple{ = > {(5x + 3)}^{2} } \\ \\ \tt{using \: identity} \\ \\ \tt\red{ {(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2} } \\ \\ \tt \purple{ = > {(5x + 3)}^{2} } \\ \\ \tt \purple{= {(5x)}^{2} + 2 \times 5x \times 3 + {(3)}^{2} } \\ \\ \tt \red{ = 25 {x}^{2} + 30x + 9 } \\ \\ \: \tt\fbox\blue{ \: i \: hope \: it \: helps \: you.}$

Answer 2

I hope this will help you

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