(n*n)-11n+18=0

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Solution for (n*n)-11n+18=0 equation:


Simplifying
(n * n) + -11n + 18 = 0

Multiply n * n
(n2) + -11n + 18 = 0
n2 + -11n + 18 = 0

Reorder the terms:
18 + -11n + n2 = 0

Solving
18 + -11n + n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(2 + -1n)(9 + -1n) = 0

Subproblem 1

Set the factor '(2 + -1n)' equal to zero and attempt to solve: Simplifying 2 + -1n = 0 Solving 2 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1n = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1n = 0 + -2 -1n = 0 + -2 Combine like terms: 0 + -2 = -2 -1n = -2 Divide each side by '-1'. n = 2 Simplifying n = 2

Subproblem 2

Set the factor '(9 + -1n)' equal to zero and attempt to solve: Simplifying 9 + -1n = 0 Solving 9 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1n = 0 + -9 -1n = 0 + -9 Combine like terms: 0 + -9 = -9 -1n = -9 Divide each side by '-1'. n = 9 Simplifying n = 9

Solution

n = {2, 9}

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