-3n(n-3)+4(n+4)=

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Solution for -3n(n-3)+4(n+4)= equation:


Simplifying
-3n(n + -3) + 4(n + 4) = 0

Reorder the terms:
-3n(-3 + n) + 4(n + 4) = 0
(-3 * -3n + n * -3n) + 4(n + 4) = 0
(9n + -3n2) + 4(n + 4) = 0

Reorder the terms:
9n + -3n2 + 4(4 + n) = 0
9n + -3n2 + (4 * 4 + n * 4) = 0
9n + -3n2 + (16 + 4n) = 0

Reorder the terms:
16 + 9n + 4n + -3n2 = 0

Combine like terms: 9n + 4n = 13n
16 + 13n + -3n2 = 0

Solving
16 + 13n + -3n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(16 + -3n)(1 + n) = 0

Subproblem 1

Set the factor '(16 + -3n)' equal to zero and attempt to solve: Simplifying 16 + -3n = 0 Solving 16 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + -3n = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -3n = 0 + -16 -3n = 0 + -16 Combine like terms: 0 + -16 = -16 -3n = -16 Divide each side by '-3'. n = 5.333333333 Simplifying n = 5.333333333

Subproblem 2

Set the factor '(1 + n)' equal to zero and attempt to solve: Simplifying 1 + n = 0 Solving 1 + n = 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 + n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + n = 0 + -1 n = 0 + -1 Combine like terms: 0 + -1 = -1 n = -1 Simplifying n = -1

Solution

n = {5.333333333, -1}

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