Using the formula for squaring a binomial, evaluate the following… - Vidyadip

Question

Using the formula for squaring a binomial, evaluate the following: $(703)^2$

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Answer

Here, we will use the identity $(a + b)^2= a^2+ 2ab + b^2$.
$(703)^2$
$= (700 + 3)^2$
$= (700)^2+ 2 × 700 × 3 + 3^2$
$= 490000 + 4200 + 9$
$= 494209$

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