If $x = 2$ and $y = 10$ , evaluate :

i) $(10 x)^{2}$

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Solution

Step: Evaluate

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 $x = 2$ and $y = 10$ is $400$ .

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