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nordsb [41]
3 years ago
13

3 times a number is 54 less than the square of that number

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 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

hope this helps

alexgriva [62]3 years ago
7 0
3x = x^2 - 54
x^2 - 3x - 54 = 0
(x - 9)(x + 6) = 0
The answer is 9 or -6
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