Question

Find the value of ${97}^2$

Answer 1

We need to find value of ${97}^2$

We know $(a-b{)}^2=a^2+b^2-2ab$

By using this identity, we have
${97}^2=(100-3{)}^2$

$={100}^2+3^2-3\times 100\times 2$

$=10000+9-600$

$=9409$