Find the square of the following numbers 71 step by step – InterviewSolution

1.

Find the square of the following numbers 71 step by step

Answer»

71

2

=71×71=5041

To MAKE calculations easy, use the FOLLOWING approach:

71=(70+1)

So, 71

2

= 70

2

+2×70×1+1

2

=4900+70+70+1

=5041

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