-15x-5+5x^2=x^2-8-2x

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Solution for -15x-5+5x^2=x^2-8-2x equation:


Simplifying
-15x + -5 + 5x2 = x2 + -8 + -2x

Reorder the terms:
-5 + -15x + 5x2 = x2 + -8 + -2x

Reorder the terms:
-5 + -15x + 5x2 = -8 + -2x + x2

Solving
-5 + -15x + 5x2 = -8 + -2x + x2

Solving for variable 'x'.

Reorder the terms:
-5 + 8 + -15x + 2x + 5x2 + -1x2 = -8 + -2x + x2 + 8 + 2x + -1x2

Combine like terms: -5 + 8 = 3
3 + -15x + 2x + 5x2 + -1x2 = -8 + -2x + x2 + 8 + 2x + -1x2

Combine like terms: -15x + 2x = -13x
3 + -13x + 5x2 + -1x2 = -8 + -2x + x2 + 8 + 2x + -1x2

Combine like terms: 5x2 + -1x2 = 4x2
3 + -13x + 4x2 = -8 + -2x + x2 + 8 + 2x + -1x2

Reorder the terms:
3 + -13x + 4x2 = -8 + 8 + -2x + 2x + x2 + -1x2

Combine like terms: -8 + 8 = 0
3 + -13x + 4x2 = 0 + -2x + 2x + x2 + -1x2
3 + -13x + 4x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
3 + -13x + 4x2 = 0 + x2 + -1x2
3 + -13x + 4x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
3 + -13x + 4x2 = 0

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

Subproblem 1

Set the factor '(1 + -4x)' equal to zero and attempt to solve: Simplifying 1 + -4x = 0 Solving 1 + -4x = 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 + -4x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4x = 0 + -1 -4x = 0 + -1 Combine like terms: 0 + -1 = -1 -4x = -1 Divide each side by '-4'. x = 0.25 Simplifying x = 0.25

Subproblem 2

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

Solution

x = {0.25, 3}

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