0=x^2-17x+50

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Solution for 0=x^2-17x+50 equation:


Simplifying
0 = x2 + -17x + 50

Reorder the terms:
0 = 50 + -17x + x2

Solving
0 = 50 + -17x + x2

Solving for variable 'x'.

Combine like terms: 0 + -50 = -50
-50 + 17x + -1x2 = 50 + -17x + x2 + -50 + 17x + -1x2

Reorder the terms:
-50 + 17x + -1x2 = 50 + -50 + -17x + 17x + x2 + -1x2

Combine like terms: 50 + -50 = 0
-50 + 17x + -1x2 = 0 + -17x + 17x + x2 + -1x2
-50 + 17x + -1x2 = -17x + 17x + x2 + -1x2

Combine like terms: -17x + 17x = 0
-50 + 17x + -1x2 = 0 + x2 + -1x2
-50 + 17x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-50 + 17x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
50 + -17x + x2 = 0

Move the constant term to the right:

Add '-50' to each side of the equation.
50 + -17x + -50 + x2 = 0 + -50

Reorder the terms:
50 + -50 + -17x + x2 = 0 + -50

Combine like terms: 50 + -50 = 0
0 + -17x + x2 = 0 + -50
-17x + x2 = 0 + -50

Combine like terms: 0 + -50 = -50
-17x + x2 = -50

The x term is -17x.  Take half its coefficient (-8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
-17x + 72.25 + x2 = -50 + 72.25

Reorder the terms:
72.25 + -17x + x2 = -50 + 72.25

Combine like terms: -50 + 72.25 = 22.25
72.25 + -17x + x2 = 22.25

Factor a perfect square on the left side:
(x + -8.5)(x + -8.5) = 22.25

Calculate the square root of the right side: 4.716990566

Break this problem into two subproblems by setting 
(x + -8.5) equal to 4.716990566 and -4.716990566.

Subproblem 1

x + -8.5 = 4.716990566 Simplifying x + -8.5 = 4.716990566 Reorder the terms: -8.5 + x = 4.716990566 Solving -8.5 + x = 4.716990566 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + x = 4.716990566 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + x = 4.716990566 + 8.5 x = 4.716990566 + 8.5 Combine like terms: 4.716990566 + 8.5 = 13.216990566 x = 13.216990566 Simplifying x = 13.216990566

Subproblem 2

x + -8.5 = -4.716990566 Simplifying x + -8.5 = -4.716990566 Reorder the terms: -8.5 + x = -4.716990566 Solving -8.5 + x = -4.716990566 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.5' to each side of the equation. -8.5 + 8.5 + x = -4.716990566 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + x = -4.716990566 + 8.5 x = -4.716990566 + 8.5 Combine like terms: -4.716990566 + 8.5 = 3.783009434 x = 3.783009434 Simplifying x = 3.783009434

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.216990566, 3.783009434}

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