Question

If we want to find square of 1008 then which method do we use?

Answer 1

${1008}^2=(1000+8{)}^2$ (using the identiy $(a+b{)}^2=a^2+b^2+2ab)$
$={1000}^2+8^2+2\times 1000\times 8$
=1000000 + 64 + 16000
= 1016064 Ans.