Find the difference of square of 12and 13 without actual squaring in t – InterviewSolution

1.

Find the difference of square of 12and 13 without actual squaring in the number

Answer»

Step-by-step EXPLANATION:

By using the FORMULA: (a2-b2) : (a+b) (a-b)

Difference: (13+12)(13-12)

: 25

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