using identity find 98²
Answers
Answered by
2
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
Kindly mark as brainliest!
Answered by
2
Heya...
Here is your answer --
- => (98)^2
- => (100-2)^2
- => (100-2) (100-2)
- => 100 (100-2) -2 (100-2)
- => 10000-200-200+4
- => 9960+4
- => 9964
OR
- => (98)^2
- => (100-2)^2
- => 100^2 + 2^2 - 2 (100)(2)
- => 10000+4 -400
- => 10004 -400
- => 9964
HOPE IT HELPS!!
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