10x^2-20x-8=-5x^2-6x

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Solution for 10x^2-20x-8=-5x^2-6x equation:


Simplifying
10x2 + -20x + -8 = -5x2 + -6x

Reorder the terms:
-8 + -20x + 10x2 = -5x2 + -6x

Reorder the terms:
-8 + -20x + 10x2 = -6x + -5x2

Solving
-8 + -20x + 10x2 = -6x + -5x2

Solving for variable 'x'.

Reorder the terms:
-8 + -20x + 6x + 10x2 + 5x2 = -6x + -5x2 + 6x + 5x2

Combine like terms: -20x + 6x = -14x
-8 + -14x + 10x2 + 5x2 = -6x + -5x2 + 6x + 5x2

Combine like terms: 10x2 + 5x2 = 15x2
-8 + -14x + 15x2 = -6x + -5x2 + 6x + 5x2

Reorder the terms:
-8 + -14x + 15x2 = -6x + 6x + -5x2 + 5x2

Combine like terms: -6x + 6x = 0
-8 + -14x + 15x2 = 0 + -5x2 + 5x2
-8 + -14x + 15x2 = -5x2 + 5x2

Combine like terms: -5x2 + 5x2 = 0
-8 + -14x + 15x2 = 0

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

Subproblem 1

Set the factor '(-2 + -5x)' equal to zero and attempt to solve: Simplifying -2 + -5x = 0 Solving -2 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5x = 0 + 2 -5x = 0 + 2 Combine like terms: 0 + 2 = 2 -5x = 2 Divide each side by '-5'. x = -0.4 Simplifying x = -0.4

Subproblem 2

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

Solution

x = {-0.4, 1.333333333}

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