If $x = 2, y = 10$ , evaluate
(iii) $(10 x)^{2}$

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Solution

Given : $(10 x)^{2}$

Substituting $x = 2$ , in the given expression

$(10 x)^{2} = (10 \times 2)^{2}$

$= (20)^{2}$

$= 400$

Hence, the value of $(10 x)^{2}$ for $x = 2, y = 10$ is $400$ .

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