Question

If $x=2,y=10$ , evaluate
(iv) $5y^2$

Answer 1

Given : $5y^2$

Substituting , $x=2,y=10$ in the given expression

$5y^2=5\times (10{)}^2$

$=5\times 100$

$=500$

Hence, the value of $5y^2$ for $x=2,y=10$ is $500$.