Math, asked by xghjk9873, 3 months ago

Express 21square as the sum of two consecutive integers

Answers

Answered by Saatvik6565

1

Answer:

Step-by-step explanation:

$(21)^2 = x+ (x+1)\\\\441 = 2x + 1 \\\\440 = 2x\\\\x = 220\\\\(21)^{2} = 220 + 221 \\$

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