7x^2-33x+22=0

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Solution for 7x^2-33x+22=0 equation:


Simplifying
7x2 + -33x + 22 = 0

Reorder the terms:
22 + -33x + 7x2 = 0

Solving
22 + -33x + 7x2 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
3.142857143 + -4.714285714x + x2 = 0

Move the constant term to the right:

Add '-3.142857143' to each side of the equation.
3.142857143 + -4.714285714x + -3.142857143 + x2 = 0 + -3.142857143

Reorder the terms:
3.142857143 + -3.142857143 + -4.714285714x + x2 = 0 + -3.142857143

Combine like terms: 3.142857143 + -3.142857143 = 0.000000000
0.000000000 + -4.714285714x + x2 = 0 + -3.142857143
-4.714285714x + x2 = 0 + -3.142857143

Combine like terms: 0 + -3.142857143 = -3.142857143
-4.714285714x + x2 = -3.142857143

The x term is -4.714285714x.  Take half its coefficient (-2.357142857).
Square it (5.556122448) and add it to both sides.

Add '5.556122448' to each side of the equation.
-4.714285714x + 5.556122448 + x2 = -3.142857143 + 5.556122448

Reorder the terms:
5.556122448 + -4.714285714x + x2 = -3.142857143 + 5.556122448

Combine like terms: -3.142857143 + 5.556122448 = 2.413265305
5.556122448 + -4.714285714x + x2 = 2.413265305

Factor a perfect square on the left side:
(x + -2.357142857)(x + -2.357142857) = 2.413265305

Calculate the square root of the right side: 1.553468798

Break this problem into two subproblems by setting 
(x + -2.357142857) equal to 1.553468798 and -1.553468798.

Subproblem 1

x + -2.357142857 = 1.553468798 Simplifying x + -2.357142857 = 1.553468798 Reorder the terms: -2.357142857 + x = 1.553468798 Solving -2.357142857 + x = 1.553468798 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.357142857' to each side of the equation. -2.357142857 + 2.357142857 + x = 1.553468798 + 2.357142857 Combine like terms: -2.357142857 + 2.357142857 = 0.000000000 0.000000000 + x = 1.553468798 + 2.357142857 x = 1.553468798 + 2.357142857 Combine like terms: 1.553468798 + 2.357142857 = 3.910611655 x = 3.910611655 Simplifying x = 3.910611655

Subproblem 2

x + -2.357142857 = -1.553468798 Simplifying x + -2.357142857 = -1.553468798 Reorder the terms: -2.357142857 + x = -1.553468798 Solving -2.357142857 + x = -1.553468798 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.357142857' to each side of the equation. -2.357142857 + 2.357142857 + x = -1.553468798 + 2.357142857 Combine like terms: -2.357142857 + 2.357142857 = 0.000000000 0.000000000 + x = -1.553468798 + 2.357142857 x = -1.553468798 + 2.357142857 Combine like terms: -1.553468798 + 2.357142857 = 0.803674059 x = 0.803674059 Simplifying x = 0.803674059

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.910611655, 0.803674059}

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