-11n-20=-4n^2

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Solution for -11n-20=-4n^2 equation:


Simplifying
-11n + -20 = -4n2

Reorder the terms:
-20 + -11n = -4n2

Solving
-20 + -11n = -4n2

Solving for variable 'n'.

Combine like terms: -4n2 + 4n2 = 0
-20 + -11n + 4n2 = 0

Factor a trinomial.
(-5 + -4n)(4 + -1n) = 0

Subproblem 1

Set the factor '(-5 + -4n)' equal to zero and attempt to solve: Simplifying -5 + -4n = 0 Solving -5 + -4n = 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 + -4n = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4n = 0 + 5 -4n = 0 + 5 Combine like terms: 0 + 5 = 5 -4n = 5 Divide each side by '-4'. n = -1.25 Simplifying n = -1.25

Subproblem 2

Set the factor '(4 + -1n)' equal to zero and attempt to solve: Simplifying 4 + -1n = 0 Solving 4 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1n = 0 + -4 -1n = 0 + -4 Combine like terms: 0 + -4 = -4 -1n = -4 Divide each side by '-1'. n = 4 Simplifying n = 4

Solution

n = {-1.25, 4}

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