3*x^2-6*x-9=-9

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Solution for 3*x^2-6*x-9=-9 equation:


Simplifying
3x2 + -6x + -9 = -9

Reorder the terms:
-9 + -6x + 3x2 = -9

Add '9' to each side of the equation.
-9 + -6x + 9 + 3x2 = -9 + 9

Reorder the terms:
-9 + 9 + -6x + 3x2 = -9 + 9

Combine like terms: -9 + 9 = 0
0 + -6x + 3x2 = -9 + 9
-6x + 3x2 = -9 + 9

Combine like terms: -9 + 9 = 0
-6x + 3x2 = 0

Solving
-6x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-2 + x) = 0

Ignore the factor 3.

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 '(-2 + x)' equal to zero and attempt to solve: Simplifying -2 + x = 0 Solving -2 + x = 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 + x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + x = 0 + 2 x = 0 + 2 Combine like terms: 0 + 2 = 2 x = 2 Simplifying x = 2

Solution

x = {0, 2}

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