3x^2+12x-9=3-4x

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Solution for 3x^2+12x-9=3-4x equation:


Simplifying
3x2 + 12x + -9 = 3 + -4x

Reorder the terms:
-9 + 12x + 3x2 = 3 + -4x

Solving
-9 + 12x + 3x2 = 3 + -4x

Solving for variable 'x'.

Reorder the terms:
-9 + -3 + 12x + 4x + 3x2 = 3 + -4x + -3 + 4x

Combine like terms: -9 + -3 = -12
-12 + 12x + 4x + 3x2 = 3 + -4x + -3 + 4x

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

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

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

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

Factor a trinomial.
(-6 + -1x)(2 + -3x) = 0

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 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 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(2 + -3x)' equal to zero and attempt to solve: Simplifying 2 + -3x = 0 Solving 2 + -3x = 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 + -3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3x = 0 + -2 -3x = 0 + -2 Combine like terms: 0 + -2 = -2 -3x = -2 Divide each side by '-3'. x = 0.6666666667 Simplifying x = 0.6666666667

Solution

x = {-6, 0.6666666667}

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