Question

find the square of 47 by column method​

Answer 1

Step-by-step explanation:

ANSWER

We need to find square of 47

It can be written as 47

2

=(40+7)

2

By using (a+b)

2

=a(a+b)+b(a+b)

Here a=40,b=7

Thus 47

2

=40(40+7)+7(40+7)

= 40

2

+280+280+7

2

=1600+560+49

=2209