Question

using identity find the square of 18​

Answer 1

$We \: know \:the ,\\\blue{ (Algebraic\: Identity )}$

$\boxed { \pink { ( a + b )^{2} = a^{2} + 2ab + b^{2} }}$

$Now, \red{ The \: value \: of \: 18^{2}} \\= ( 10 + 8 )^{2} \\= 10^{2} + 2 \times 10 \times 8 + 8^{2} \\= 100 + 160 + 64 \\= 324$

Therefore.,

$\red{ The \: value \: of \: 18^{2}}\green {= 324 }$

•••♪