3x^2-21x=12x

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Solution for 3x^2-21x=12x equation:


Simplifying
3x2 + -21x = 12x

Reorder the terms:
-21x + 3x2 = 12x

Solving
-21x + 3x2 = 12x

Solving for variable 'x'.

Reorder the terms:
-21x + -12x + 3x2 = 12x + -12x

Combine like terms: -21x + -12x = -33x
-33x + 3x2 = 12x + -12x

Combine like terms: 12x + -12x = 0
-33x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-11 + 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 '(-11 + x)' equal to zero and attempt to solve: Simplifying -11 + x = 0 Solving -11 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + x = 0 + 11 x = 0 + 11 Combine like terms: 0 + 11 = 11 x = 11 Simplifying x = 11

Solution

x = {0, 11}

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