5n^2-3n=8

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Solution for 5n^2-3n=8 equation:


Simplifying
5n2 + -3n = 8

Reorder the terms:
-3n + 5n2 = 8

Solving
-3n + 5n2 = 8

Solving for variable 'n'.

Reorder the terms:
-8 + -3n + 5n2 = 8 + -8

Combine like terms: 8 + -8 = 0
-8 + -3n + 5n2 = 0

Factor a trinomial.
(-1 + -1n)(8 + -5n) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(8 + -5n)' equal to zero and attempt to solve: Simplifying 8 + -5n = 0 Solving 8 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -5n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -5n = 0 + -8 -5n = 0 + -8 Combine like terms: 0 + -8 = -8 -5n = -8 Divide each side by '-5'. n = 1.6 Simplifying n = 1.6

Solution

n = {-1, 1.6}

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