evaliate 98 square using suitable identity of algebra
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Answered by
1
Answer:
98 square
Step-by-step explanation:
We can write (98)^2 as ( 100 - 2)^2
Therefore it is our (a-b) ^2 Identity!
So, (100-2)^2 = (100)^2 + (2)^2 - 2(100)(2)
= 10000 + 4 - 400
Which is equal to
=10004-400 = 9604
Therefore 98^2 = 9604
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Answered by
1
98 square using suitable identity of algebra
- Given,
- 98
- = (98)^2
- =(100-2)^2
- Identity (a-b)^2 = a^2 + b^2 - 2ab
- (100-2)^2 = 100^2 + 2^2 - 2(100)(2)
- = 10000 + 4 -2(200)
- = 10004 - 400
- = 9604
- ∴ (98)^2 = 9604
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