4n^2-126=-5n+3n^2

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Solution for 4n^2-126=-5n+3n^2 equation:


Simplifying
4n2 + -126 = -5n + 3n2

Reorder the terms:
-126 + 4n2 = -5n + 3n2

Solving
-126 + 4n2 = -5n + 3n2

Solving for variable 'n'.

Reorder the terms:
-126 + 5n + 4n2 + -3n2 = -5n + 3n2 + 5n + -3n2

Combine like terms: 4n2 + -3n2 = 1n2
-126 + 5n + 1n2 = -5n + 3n2 + 5n + -3n2

Reorder the terms:
-126 + 5n + 1n2 = -5n + 5n + 3n2 + -3n2

Combine like terms: -5n + 5n = 0
-126 + 5n + 1n2 = 0 + 3n2 + -3n2
-126 + 5n + 1n2 = 3n2 + -3n2

Combine like terms: 3n2 + -3n2 = 0
-126 + 5n + 1n2 = 0

Factor a trinomial.
(-14 + -1n)(9 + -1n) = 0

Subproblem 1

Set the factor '(-14 + -1n)' equal to zero and attempt to solve: Simplifying -14 + -1n = 0 Solving -14 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1n = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1n = 0 + 14 -1n = 0 + 14 Combine like terms: 0 + 14 = 14 -1n = 14 Divide each side by '-1'. n = -14 Simplifying n = -14

Subproblem 2

Set the factor '(9 + -1n)' equal to zero and attempt to solve: Simplifying 9 + -1n = 0 Solving 9 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1n = 0 + -9 -1n = 0 + -9 Combine like terms: 0 + -9 = -9 -1n = -9 Divide each side by '-1'. n = 9 Simplifying n = 9

Solution

n = {-14, 9}

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