Question

If $x=8,y=2$, evaluate
(iii) $(4y{)}^2$ .

Answer 1

Substituting $x=8,y=2$ in the given expression ,

$(4y{)}^2=(4\times 2{)}^2$

$=(8{)}^2$

$=64$
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Hence, the value of $(4y{)}^2$ for $x=8,y=2$ is $64$.