Question

Resolve:${\left(936\right)}^2-{\left(64\right)}^2$

Answer 1

${\left(936\right)}^2-{\left(64\right)}^2$ is of the form $a^2-b^2=(a-b)(a+b)$

$=(936-64)(936+64)$

$=872\times 1000$

$=8,72,000$