2x^2-20x=-3x^2-4x-12

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Solution for 2x^2-20x=-3x^2-4x-12 equation:


Simplifying
2x2 + -20x = -3x2 + -4x + -12

Reorder the terms:
-20x + 2x2 = -3x2 + -4x + -12

Reorder the terms:
-20x + 2x2 = -12 + -4x + -3x2

Solving
-20x + 2x2 = -12 + -4x + -3x2

Solving for variable 'x'.

Reorder the terms:
12 + -20x + 4x + 2x2 + 3x2 = -12 + -4x + -3x2 + 12 + 4x + 3x2

Combine like terms: -20x + 4x = -16x
12 + -16x + 2x2 + 3x2 = -12 + -4x + -3x2 + 12 + 4x + 3x2

Combine like terms: 2x2 + 3x2 = 5x2
12 + -16x + 5x2 = -12 + -4x + -3x2 + 12 + 4x + 3x2

Reorder the terms:
12 + -16x + 5x2 = -12 + 12 + -4x + 4x + -3x2 + 3x2

Combine like terms: -12 + 12 = 0
12 + -16x + 5x2 = 0 + -4x + 4x + -3x2 + 3x2
12 + -16x + 5x2 = -4x + 4x + -3x2 + 3x2

Combine like terms: -4x + 4x = 0
12 + -16x + 5x2 = 0 + -3x2 + 3x2
12 + -16x + 5x2 = -3x2 + 3x2

Combine like terms: -3x2 + 3x2 = 0
12 + -16x + 5x2 = 0

Factor a trinomial.
(6 + -5x)(2 + -1x) = 0

Subproblem 1

Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {1.2, 2}

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