11x^2-12x+4=21x+4

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Solution for 11x^2-12x+4=21x+4 equation:


Simplifying
11x2 + -12x + 4 = 21x + 4

Reorder the terms:
4 + -12x + 11x2 = 21x + 4

Reorder the terms:
4 + -12x + 11x2 = 4 + 21x

Add '-4' to each side of the equation.
4 + -12x + -4 + 11x2 = 4 + -4 + 21x

Reorder the terms:
4 + -4 + -12x + 11x2 = 4 + -4 + 21x

Combine like terms: 4 + -4 = 0
0 + -12x + 11x2 = 4 + -4 + 21x
-12x + 11x2 = 4 + -4 + 21x

Combine like terms: 4 + -4 = 0
-12x + 11x2 = 0 + 21x
-12x + 11x2 = 21x

Solving
-12x + 11x2 = 21x

Solving for variable 'x'.

Reorder the terms:
-12x + -21x + 11x2 = 21x + -21x

Combine like terms: -12x + -21x = -33x
-33x + 11x2 = 21x + -21x

Combine like terms: 21x + -21x = 0
-33x + 11x2 = 0

Factor out the Greatest Common Factor (GCF), '11x'.
11x(-3 + x) = 0

Ignore the factor 11.

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 '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 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 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3

Solution

x = {0, 3}

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