3x^2-72x+368=0

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Solution for 3x^2-72x+368=0 equation:


Simplifying
3x2 + -72x + 368 = 0

Reorder the terms:
368 + -72x + 3x2 = 0

Solving
368 + -72x + 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'.
122.6666667 + -24x + x2 = 0

Move the constant term to the right:

Add '-122.6666667' to each side of the equation.
122.6666667 + -24x + -122.6666667 + x2 = 0 + -122.6666667

Reorder the terms:
122.6666667 + -122.6666667 + -24x + x2 = 0 + -122.6666667

Combine like terms: 122.6666667 + -122.6666667 = 0.0000000
0.0000000 + -24x + x2 = 0 + -122.6666667
-24x + x2 = 0 + -122.6666667

Combine like terms: 0 + -122.6666667 = -122.6666667
-24x + x2 = -122.6666667

The x term is -24x.  Take half its coefficient (-12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
-24x + 144 + x2 = -122.6666667 + 144

Reorder the terms:
144 + -24x + x2 = -122.6666667 + 144

Combine like terms: -122.6666667 + 144 = 21.3333333
144 + -24x + x2 = 21.3333333

Factor a perfect square on the left side:
(x + -12)(x + -12) = 21.3333333

Calculate the square root of the right side: 4.61880215

Break this problem into two subproblems by setting 
(x + -12) equal to 4.61880215 and -4.61880215.

Subproblem 1

x + -12 = 4.61880215 Simplifying x + -12 = 4.61880215 Reorder the terms: -12 + x = 4.61880215 Solving -12 + x = 4.61880215 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 4.61880215 + 12 Combine like terms: -12 + 12 = 0 0 + x = 4.61880215 + 12 x = 4.61880215 + 12 Combine like terms: 4.61880215 + 12 = 16.61880215 x = 16.61880215 Simplifying x = 16.61880215

Subproblem 2

x + -12 = -4.61880215 Simplifying x + -12 = -4.61880215 Reorder the terms: -12 + x = -4.61880215 Solving -12 + x = -4.61880215 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = -4.61880215 + 12 Combine like terms: -12 + 12 = 0 0 + x = -4.61880215 + 12 x = -4.61880215 + 12 Combine like terms: -4.61880215 + 12 = 7.38119785 x = 7.38119785 Simplifying x = 7.38119785

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.61880215, 7.38119785}

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