x^2-12x+17.5=0

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Solution for x^2-12x+17.5=0 equation:


Simplifying
x2 + -12x + 17.5 = 0

Reorder the terms:
17.5 + -12x + x2 = 0

Solving
17.5 + -12x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-17.5' to each side of the equation.
17.5 + -12x + -17.5 + x2 = 0 + -17.5

Reorder the terms:
17.5 + -17.5 + -12x + x2 = 0 + -17.5

Combine like terms: 17.5 + -17.5 = 0.0
0.0 + -12x + x2 = 0 + -17.5
-12x + x2 = 0 + -17.5

Combine like terms: 0 + -17.5 = -17.5
-12x + x2 = -17.5

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 = -17.5 + 36

Reorder the terms:
36 + -12x + x2 = -17.5 + 36

Combine like terms: -17.5 + 36 = 18.5
36 + -12x + x2 = 18.5

Factor a perfect square on the left side:
(x + -6)(x + -6) = 18.5

Calculate the square root of the right side: 4.301162634

Break this problem into two subproblems by setting 
(x + -6) equal to 4.301162634 and -4.301162634.

Subproblem 1

x + -6 = 4.301162634 Simplifying x + -6 = 4.301162634 Reorder the terms: -6 + x = 4.301162634 Solving -6 + x = 4.301162634 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 = 4.301162634 + 6 Combine like terms: -6 + 6 = 0 0 + x = 4.301162634 + 6 x = 4.301162634 + 6 Combine like terms: 4.301162634 + 6 = 10.301162634 x = 10.301162634 Simplifying x = 10.301162634

Subproblem 2

x + -6 = -4.301162634 Simplifying x + -6 = -4.301162634 Reorder the terms: -6 + x = -4.301162634 Solving -6 + x = -4.301162634 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 = -4.301162634 + 6 Combine like terms: -6 + 6 = 0 0 + x = -4.301162634 + 6 x = -4.301162634 + 6 Combine like terms: -4.301162634 + 6 = 1.698837366 x = 1.698837366 Simplifying x = 1.698837366

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.301162634, 1.698837366}

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