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

Question

Using the formula for squaring a binomial, evaluate the following: $(102)^2$

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Answer

Here, we will use the identity $(a+b)^2=a^2+2 a b+b^2$.
$(102)^2$
$=(100+2)^2$
$=(100)^2+2 \times 100 \times 2+2^2$
$=10000+400+4$
$=10404$

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