evaluate using identity
101^2-99^2
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Answered by
1
Answer:
using identity a square minus b square equals to (a minus b )x (a + b)
101 - 99 × 101 + 99
2 into 200
400
Answered by
2
Answer:
Answer:
using identity a square minus b square equals to (a minus b )x (a + b)
101 - 99 × 101 + 99
2 into 200
400
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