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Andrej [43]
2 years ago
11

The sum of a number squared and two times that number minus one is zero.

English
1 answer:
zlopas [31]2 years ago
7 0

Answer:

n = -1

Explanation:

(n^2 + 2n) - 1 = 0

n^2 + 2n = -1

solve

n = -1

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