3 years ago

Helppppppppppppppppppppppp

Mathematics

1 answer:

andrew11 [14]3 years ago

7 0

Answer: n = 1, n = -1/3

Step-by-step explanation:

(3n - 1)² = 12n + 8

9n² - 6n + 1 = 12n + 8

9n² - 18n - 7 = 0

Substitute -18n with 3n - 21n and find the common factor of each side:

9n² + 3n -21n - 7 = 0

3n(3n + 1) -3(3n + 1) = 0

(3n - 3) (3n + 1) = 0

Solve for each factor:

3n - 3 = 0 3n + 1 = 0

3n = 3 3n = -1

n = 1 n = -1/3

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