Question
Find the value of using the column method:
$(52)^2$

Answer

Given number $52=50+2$

Here,

$a =50$ and $b =2$$$
 
$a ^2$
$2ab$
$b^2$
$(50)^2=2500$
$2 × 50 × 2 = 200$
$(2)^2=4$

$\therefore(52)^2=(2500+200+4)=2704$

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