using the identity( a + b )²=a²+ 2 a b + b ²
1).51 ²
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Answered by
1
51^2 is (50+1)^2
50^2+50(2)(1)+1^2
2500+100+1
2601
50^2+50(2)(1)+1^2
2500+100+1
2601
Answered by
0
Answer:
i don't know the answer
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