Math, asked by mithus67, 9 months ago

express 21 square as the sum two consecutive number

Answers

Answered by brunoconti

3

Answer:

Step-by-step explanation:

21^2 = 441 = 220 + 221

Answered by irshadkwt99

1

Answer:

Step-by-step explanation:

(15+17)^2

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