2 years ago

Is 9999 in the sequence n²+2n?

Mathematics

1 answer:

Tamiku [17]2 years ago

8 0

Answer:

Step-by-step explanation:

To find out, all we need to do is plug in 9999 into the sequence.

$9999 = n^2 + 2n$

By completing the square, we get $(n+1)^2 = 1001$ . 1001 is not a perfect square, which means that 9999 is not in the sequence.

hope this helped! :)

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Is 9999 in the sequence n²+2n?​

Is 9999 in the sequence n²+2n?