Evaluate: (38)^2- (37)^2 - Vidyadip

Question

Evaluate:
$(38)^2- (37)^2$

✓

Answer

We have,
$(n + 1)^2- n^2= (n + 1) + n.$
Taking $n = 37$ and $(n + 1) = 38,$
We get,
$(38)^2- (37)^2= (38 + 37) = 75$

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