3x^2-36x+12=0

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Solution for 3x^2-36x+12=0 equation:


Simplifying
3x2 + -36x + 12 = 0

Reorder the terms:
12 + -36x + 3x2 = 0

Solving
12 + -36x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(4 + -12x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(4 + -12x + x2)' equal to zero and attempt to solve: Simplifying 4 + -12x + x2 = 0 Solving 4 + -12x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + -12x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -12x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -12x + x2 = 0 + -4 -12x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -12x + x2 = -4 The x term is -12x. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12x + 36 + x2 = -4 + 36 Reorder the terms: 36 + -12x + x2 = -4 + 36 Combine like terms: -4 + 36 = 32 36 + -12x + x2 = 32 Factor a perfect square on the left side: (x + -6)(x + -6) = 32 Calculate the square root of the right side: 5.656854249 Break this problem into two subproblems by setting (x + -6) equal to 5.656854249 and -5.656854249.

Subproblem 1

x + -6 = 5.656854249 Simplifying x + -6 = 5.656854249 Reorder the terms: -6 + x = 5.656854249 Solving -6 + x = 5.656854249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 5.656854249 + 6 Combine like terms: -6 + 6 = 0 0 + x = 5.656854249 + 6 x = 5.656854249 + 6 Combine like terms: 5.656854249 + 6 = 11.656854249 x = 11.656854249 Simplifying x = 11.656854249

Subproblem 2

x + -6 = -5.656854249 Simplifying x + -6 = -5.656854249 Reorder the terms: -6 + x = -5.656854249 Solving -6 + x = -5.656854249 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -5.656854249 + 6 Combine like terms: -6 + 6 = 0 0 + x = -5.656854249 + 6 x = -5.656854249 + 6 Combine like terms: -5.656854249 + 6 = 0.343145751 x = 0.343145751 Simplifying x = 0.343145751

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.656854249, 0.343145751}

Solution

x = {11.656854249, 0.343145751}

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