Question

If $m=2$ ,evaluate
(ii) $15m^2-10m$.

Answer 1

Given : $15m^2-10m$.

Substituting $m=2$, in the given expression

$15m^2-10m=15\times (2{)}^2-10\times 2$
$=60-20$
$=40$

Hence, the value of $15m^2-10m$ for $m=2$ is $40$.