Question

(72) power2- (18)power2

Answer 1

$<b >Hey here is your answer$

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$= \: 72^2 - 18^2$

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using identity

${a}^{2} - {b}^{2} = (a + b)(a - b)$

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$= {72}^{2} - {18}^{2} \\ \\ = (72 + 18)(72 - 18) \\ \\ = 90 \times 54 \\ \\ = 4860 \: \: answer$

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$\color{red} {\boxed{\huge{\bold{\underline{OR \: - }}}}}$

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= ${72}^{2} - {18}^{2}$

= 5184 - 324

= 4860 Answer

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hope this helps you