Question

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

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

Answer 1

Step: Evaluate

Given: $(10x{)}^2$
Substituting $x=2$ in the given expression
$(10x{)}^2=(10\times 2{)}^2$
$={20}^2$
$=400$

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