2x^2+6x+9=4x^2-12x+9

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Solution for 2x^2+6x+9=4x^2-12x+9 equation:


Simplifying
2x2 + 6x + 9 = 4x2 + -12x + 9

Reorder the terms:
9 + 6x + 2x2 = 4x2 + -12x + 9

Reorder the terms:
9 + 6x + 2x2 = 9 + -12x + 4x2

Add '-9' to each side of the equation.
9 + 6x + -9 + 2x2 = 9 + -12x + -9 + 4x2

Reorder the terms:
9 + -9 + 6x + 2x2 = 9 + -12x + -9 + 4x2

Combine like terms: 9 + -9 = 0
0 + 6x + 2x2 = 9 + -12x + -9 + 4x2
6x + 2x2 = 9 + -12x + -9 + 4x2

Reorder the terms:
6x + 2x2 = 9 + -9 + -12x + 4x2

Combine like terms: 9 + -9 = 0
6x + 2x2 = 0 + -12x + 4x2
6x + 2x2 = -12x + 4x2

Solving
6x + 2x2 = -12x + 4x2

Solving for variable 'x'.

Reorder the terms:
6x + 12x + 2x2 + -4x2 = -12x + 4x2 + 12x + -4x2

Combine like terms: 6x + 12x = 18x
18x + 2x2 + -4x2 = -12x + 4x2 + 12x + -4x2

Combine like terms: 2x2 + -4x2 = -2x2
18x + -2x2 = -12x + 4x2 + 12x + -4x2

Reorder the terms:
18x + -2x2 = -12x + 12x + 4x2 + -4x2

Combine like terms: -12x + 12x = 0
18x + -2x2 = 0 + 4x2 + -4x2
18x + -2x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
18x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2x'.
2x(9 + -1x) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {0, 9}

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