Mathematics
Use (a - b)2 = a2 - 2ab + b2 to evaluate the following:
(99)2
Expansions
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Answer
(99)2 = (100 - 1)2
Using (a - b)2 = a2 - 2ab + b2,
(100 - 1)2 = (100)2 - 2(100)(1) + (1)2
= 10000 - 200 + 1 = 9801
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Use (a - b)2 = a2 - 2ab + b2 to evaluate the following:
(99)2
9 Likes
(99)2 = (100 - 1)2
Using (a - b)2 = a2 - 2ab + b2,
(100 - 1)2 = (100)2 - 2(100)(1) + (1)2
= 10000 - 200 + 1 = 9801
Answered By
7 Likes