3x^2-32x+12=0

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Solution for 3x^2-32x+12=0 equation:


Simplifying
3x2 + -32x + 12 = 0

Reorder the terms:
12 + -32x + 3x2 = 0

Solving
12 + -32x + 3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
4 + -10.66666667x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -10.66666667x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -10.66666667x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -10.66666667x + x2 = 0 + -4
-10.66666667x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-10.66666667x + x2 = -4

The x term is -10.66666667x.  Take half its coefficient (-5.333333335).
Square it (28.44444446) and add it to both sides.

Add '28.44444446' to each side of the equation.
-10.66666667x + 28.44444446 + x2 = -4 + 28.44444446

Reorder the terms:
28.44444446 + -10.66666667x + x2 = -4 + 28.44444446

Combine like terms: -4 + 28.44444446 = 24.44444446
28.44444446 + -10.66666667x + x2 = 24.44444446

Factor a perfect square on the left side:
(x + -5.333333335)(x + -5.333333335) = 24.44444446

Calculate the square root of the right side: 4.944132326

Break this problem into two subproblems by setting 
(x + -5.333333335) equal to 4.944132326 and -4.944132326.

Subproblem 1

x + -5.333333335 = 4.944132326 Simplifying x + -5.333333335 = 4.944132326 Reorder the terms: -5.333333335 + x = 4.944132326 Solving -5.333333335 + x = 4.944132326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = 4.944132326 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = 4.944132326 + 5.333333335 x = 4.944132326 + 5.333333335 Combine like terms: 4.944132326 + 5.333333335 = 10.277465661 x = 10.277465661 Simplifying x = 10.277465661

Subproblem 2

x + -5.333333335 = -4.944132326 Simplifying x + -5.333333335 = -4.944132326 Reorder the terms: -5.333333335 + x = -4.944132326 Solving -5.333333335 + x = -4.944132326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = -4.944132326 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = -4.944132326 + 5.333333335 x = -4.944132326 + 5.333333335 Combine like terms: -4.944132326 + 5.333333335 = 0.389201009 x = 0.389201009 Simplifying x = 0.389201009

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.277465661, 0.389201009}

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