6n(n+4)=n-20

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Solution for 6n(n+4)=n-20 equation:


Simplifying
6n(n + 4) = n + -20

Reorder the terms:
6n(4 + n) = n + -20
(4 * 6n + n * 6n) = n + -20
(24n + 6n2) = n + -20

Reorder the terms:
24n + 6n2 = -20 + n

Solving
24n + 6n2 = -20 + n

Solving for variable 'n'.

Reorder the terms:
20 + 24n + -1n + 6n2 = -20 + n + 20 + -1n

Combine like terms: 24n + -1n = 23n
20 + 23n + 6n2 = -20 + n + 20 + -1n

Reorder the terms:
20 + 23n + 6n2 = -20 + 20 + n + -1n

Combine like terms: -20 + 20 = 0
20 + 23n + 6n2 = 0 + n + -1n
20 + 23n + 6n2 = n + -1n

Combine like terms: n + -1n = 0
20 + 23n + 6n2 = 0

Factor a trinomial.
(5 + 2n)(4 + 3n) = 0

Subproblem 1

Set the factor '(5 + 2n)' equal to zero and attempt to solve: Simplifying 5 + 2n = 0 Solving 5 + 2n = 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 + 2n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2n = 0 + -5 2n = 0 + -5 Combine like terms: 0 + -5 = -5 2n = -5 Divide each side by '2'. n = -2.5 Simplifying n = -2.5

Subproblem 2

Set the factor '(4 + 3n)' equal to zero and attempt to solve: Simplifying 4 + 3n = 0 Solving 4 + 3n = 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 + 3n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3n = 0 + -4 3n = 0 + -4 Combine like terms: 0 + -4 = -4 3n = -4 Divide each side by '3'. n = -1.333333333 Simplifying n = -1.333333333

Solution

n = {-2.5, -1.333333333}

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