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Mumz [18]
3 years ago
11

3 times a number is 54 less than the square of that number. Find the negative solution.

Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Answer:

-6

Step-by-step explanation:

3n = n² - 54

n² - 3n - 54 = 0

n² - 9n + 6n - 54 = 0

n(n - 9) + 6(n - 9) = 0

(n - 9)(n + 6) = 0

n = 9 , -6

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