5n^2-8n=36

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Solution for 5n^2-8n=36 equation:


Simplifying
5n2 + -8n = 36

Reorder the terms:
-8n + 5n2 = 36

Solving
-8n + 5n2 = 36

Solving for variable 'n'.

Reorder the terms:
-36 + -8n + 5n2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + -8n + 5n2 = 0

Factor a trinomial.
(-2 + -1n)(18 + -5n) = 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 '(18 + -5n)' equal to zero and attempt to solve: Simplifying 18 + -5n = 0 Solving 18 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + -5n = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -5n = 0 + -18 -5n = 0 + -18 Combine like terms: 0 + -18 = -18 -5n = -18 Divide each side by '-5'. n = 3.6 Simplifying n = 3.6

Solution

n = {-2, 3.6}

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