Using the formula (a+b)^2= (a^2+2 a b+b^2 ), evaluate: (508)^2 - Vidyadip

Question

Using the formula $(a+b)^2=\left(a^2+2 a b+b^2\right)$, evaluate:
$(508)^2$

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Answer

$(508)^2$
$=(500+8)^2$
$=(500)^2+2 \times 500 \times 8+(8)^2$
$=(250000+8000+64)$
$=258064$

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