Question

By using the formula the value of (703) whole square is

Answer 1

${(703)}^{2} =(700 + 3) {}^{2} = ( {a + b)}^{2}$

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

$where \: \\ a = 700 \\ b = 3$

$= {700}^{2} + {3}^{2} + 2 \times 700 \times 3$

$= 490000 + 9 + 4200$

$= 494209$

$hence \: {(703)}^{2} = 494209$

hope it helped ✌