3x^2+2x=15x-4

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Solution for 3x^2+2x=15x-4 equation:


Simplifying
3x2 + 2x = 15x + -4

Reorder the terms:
2x + 3x2 = 15x + -4

Reorder the terms:
2x + 3x2 = -4 + 15x

Solving
2x + 3x2 = -4 + 15x

Solving for variable 'x'.

Reorder the terms:
4 + 2x + -15x + 3x2 = -4 + 15x + 4 + -15x

Combine like terms: 2x + -15x = -13x
4 + -13x + 3x2 = -4 + 15x + 4 + -15x

Reorder the terms:
4 + -13x + 3x2 = -4 + 4 + 15x + -15x

Combine like terms: -4 + 4 = 0
4 + -13x + 3x2 = 0 + 15x + -15x
4 + -13x + 3x2 = 15x + -15x

Combine like terms: 15x + -15x = 0
4 + -13x + 3x2 = 0

Factor a trinomial.
(1 + -3x)(4 + -1x) = 0

Subproblem 1

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Subproblem 2

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

Solution

x = {0.3333333333, 4}

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