expand. (99)²
with explanation
Answers
Answered by
1
Answer:
(100-1)^2
10000+1-200
9801.
Answered by
3
Step-by-step explanation:
(100-1)^2
(100)^2 +(1)^2 -2×100×
10000+1-200
10001-200
9801
please mark my answer as brainlist
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