6n^2-105=9n

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Solution for 6n^2-105=9n equation:


Simplifying
6n2 + -105 = 9n

Reorder the terms:
-105 + 6n2 = 9n

Solving
-105 + 6n2 = 9n

Solving for variable 'n'.

Reorder the terms:
-105 + -9n + 6n2 = 9n + -9n

Combine like terms: 9n + -9n = 0
-105 + -9n + 6n2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-35 + -3n + 2n2) = 0

Factor a trinomial.
3((-7 + -2n)(5 + -1n)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-7 + -2n)' equal to zero and attempt to solve: Simplifying -7 + -2n = 0 Solving -7 + -2n = 0 Move all terms containing n to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -2n = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2n = 0 + 7 -2n = 0 + 7 Combine like terms: 0 + 7 = 7 -2n = 7 Divide each side by '-2'. n = -3.5 Simplifying n = -3.5

Subproblem 2

Set the factor '(5 + -1n)' equal to zero and attempt to solve: Simplifying 5 + -1n = 0 Solving 5 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1n = 0 + -5 -1n = 0 + -5 Combine like terms: 0 + -5 = -5 -1n = -5 Divide each side by '-1'. n = 5 Simplifying n = 5

Solution

n = {-3.5, 5}

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