without autual multiplication find the squares of 66
Answers
Answered by
2
Answer:
4356
Step-by-step explanation:
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Answered by
2
Answer:
4356
Step-by-step explanation:
66^2
= (60 + 6)^2
using identity: (a+b)^2 = a^2 + b^2 +2ab
= 60^2 + 6^2 + 2(60)(6)
= 3600 + 36 + 720
= 4356
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