3x^2-36x+18=0

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Solution for 3x^2-36x+18=0 equation:


Simplifying
3x2 + -36x + 18 = 0

Reorder the terms:
18 + -36x + 3x2 = 0

Solving
18 + -36x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(6 + -12x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(6 + -12x + x2)' equal to zero and attempt to solve: Simplifying 6 + -12x + x2 = 0 Solving 6 + -12x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-6' to each side of the equation. 6 + -12x + -6 + x2 = 0 + -6 Reorder the terms: 6 + -6 + -12x + x2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -12x + x2 = 0 + -6 -12x + x2 = 0 + -6 Combine like terms: 0 + -6 = -6 -12x + x2 = -6 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 = -6 + 36 Reorder the terms: 36 + -12x + x2 = -6 + 36 Combine like terms: -6 + 36 = 30 36 + -12x + x2 = 30 Factor a perfect square on the left side: (x + -6)(x + -6) = 30 Calculate the square root of the right side: 5.477225575 Break this problem into two subproblems by setting (x + -6) equal to 5.477225575 and -5.477225575.

Subproblem 1

x + -6 = 5.477225575 Simplifying x + -6 = 5.477225575 Reorder the terms: -6 + x = 5.477225575 Solving -6 + x = 5.477225575 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 = 5.477225575 + 6 Combine like terms: -6 + 6 = 0 0 + x = 5.477225575 + 6 x = 5.477225575 + 6 Combine like terms: 5.477225575 + 6 = 11.477225575 x = 11.477225575 Simplifying x = 11.477225575

Subproblem 2

x + -6 = -5.477225575 Simplifying x + -6 = -5.477225575 Reorder the terms: -6 + x = -5.477225575 Solving -6 + x = -5.477225575 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 = -5.477225575 + 6 Combine like terms: -6 + 6 = 0 0 + x = -5.477225575 + 6 x = -5.477225575 + 6 Combine like terms: -5.477225575 + 6 = 0.522774425 x = 0.522774425 Simplifying x = 0.522774425

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.477225575, 0.522774425}

Solution

x = {11.477225575, 0.522774425}

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