x^2-40x+333=0

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Solution for x^2-40x+333=0 equation:


Simplifying
x2 + -40x + 333 = 0

Reorder the terms:
333 + -40x + x2 = 0

Solving
333 + -40x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-333' to each side of the equation.
333 + -40x + -333 + x2 = 0 + -333

Reorder the terms:
333 + -333 + -40x + x2 = 0 + -333

Combine like terms: 333 + -333 = 0
0 + -40x + x2 = 0 + -333
-40x + x2 = 0 + -333

Combine like terms: 0 + -333 = -333
-40x + x2 = -333

The x term is -40x.  Take half its coefficient (-20).
Square it (400) and add it to both sides.

Add '400' to each side of the equation.
-40x + 400 + x2 = -333 + 400

Reorder the terms:
400 + -40x + x2 = -333 + 400

Combine like terms: -333 + 400 = 67
400 + -40x + x2 = 67

Factor a perfect square on the left side:
(x + -20)(x + -20) = 67

Calculate the square root of the right side: 8.185352772

Break this problem into two subproblems by setting 
(x + -20) equal to 8.185352772 and -8.185352772.

Subproblem 1

x + -20 = 8.185352772 Simplifying x + -20 = 8.185352772 Reorder the terms: -20 + x = 8.185352772 Solving -20 + x = 8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + x = 8.185352772 + 20 Combine like terms: -20 + 20 = 0 0 + x = 8.185352772 + 20 x = 8.185352772 + 20 Combine like terms: 8.185352772 + 20 = 28.185352772 x = 28.185352772 Simplifying x = 28.185352772

Subproblem 2

x + -20 = -8.185352772 Simplifying x + -20 = -8.185352772 Reorder the terms: -20 + x = -8.185352772 Solving -20 + x = -8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + x = -8.185352772 + 20 Combine like terms: -20 + 20 = 0 0 + x = -8.185352772 + 20 x = -8.185352772 + 20 Combine like terms: -8.185352772 + 20 = 11.814647228 x = 11.814647228 Simplifying x = 11.814647228

Solution

The solution to the problem is based on the solutions from the subproblems. x = {28.185352772, 11.814647228}

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