36=2x^2-2x-4

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Solution for 36=2x^2-2x-4 equation:


Simplifying
36 = 2x2 + -2x + -4

Reorder the terms:
36 = -4 + -2x + 2x2

Solving
36 = -4 + -2x + 2x2

Solving for variable 'x'.

Combine like terms: 36 + 4 = 40
40 + 2x + -2x2 = -4 + -2x + 2x2 + 4 + 2x + -2x2

Reorder the terms:
40 + 2x + -2x2 = -4 + 4 + -2x + 2x + 2x2 + -2x2

Combine like terms: -4 + 4 = 0
40 + 2x + -2x2 = 0 + -2x + 2x + 2x2 + -2x2
40 + 2x + -2x2 = -2x + 2x + 2x2 + -2x2

Combine like terms: -2x + 2x = 0
40 + 2x + -2x2 = 0 + 2x2 + -2x2
40 + 2x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
40 + 2x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(20 + x + -1x2) = 0

Factor a trinomial.
2((5 + -1x)(4 + x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {5, -4}

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