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Nine Times Ten Is Ninety

Algebra Level 2

\[\large n(n+1) = 9 \times 10 \]

Is it true that the only solution is \(n=9\)?

Yes, it is true No, it is not true

View solutions

Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Agnishom Chattopadhyay

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