Asked by Summer
If 9876^2=97,535,376
Find the value of 9877^2 and (9874)(9878) without using a calculator
Find the value of 9877^2 and (9874)(9878) without using a calculator
Answers
Answered by
Steve
(9874)(9878) = (9876-2)(9876+2) = 9876^2 - 2^2
9877^2 = (9876+1)^2 = ...
9877^2 = (9876+1)^2 = ...
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