find 31^2 without actually multiplying the number by itself
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3
Answer:
961
Step-by-step explanation:
31^2 can be written as (30 + 1 )^2
(a + b)^2 = a^2 + b^2 + 2ab
30^2 + 1^2 + 2 (30)(1)
900 + 1 + 60
961
Answered by
0
Answer:
961
Step-by-step explanation:
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