4x^2-12=2x

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


Simplifying
4x2 + -12 = 2x

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

Solving
-12 + 4x2 = 2x

Solving for variable 'x'.

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

Combine like terms: 2x + -2x = 0
-12 + -2x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-6 + -1x + 2x2) = 0

Factor a trinomial.
2((-3 + -2x)(2 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -2x)' equal to zero and attempt to solve: Simplifying -3 + -2x = 0 Solving -3 + -2x = 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 + -2x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = 0 + 3 -2x = 0 + 3 Combine like terms: 0 + 3 = 3 -2x = 3 Divide each side by '-2'. x = -1.5 Simplifying x = -1.5

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 = {-1.5, 2}

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