x^2-10x=17

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Solution for x^2-10x=17 equation:


Simplifying
x2 + -10x = 17

Reorder the terms:
-10x + x2 = 17

Solving
-10x + x2 = 17

Solving for variable 'x'.

Reorder the terms:
-17 + -10x + x2 = 17 + -17

Combine like terms: 17 + -17 = 0
-17 + -10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '17' to each side of the equation.
-17 + -10x + 17 + x2 = 0 + 17

Reorder the terms:
-17 + 17 + -10x + x2 = 0 + 17

Combine like terms: -17 + 17 = 0
0 + -10x + x2 = 0 + 17
-10x + x2 = 0 + 17

Combine like terms: 0 + 17 = 17
-10x + x2 = 17

The x term is -10x.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10x + 25 + x2 = 17 + 25

Reorder the terms:
25 + -10x + x2 = 17 + 25

Combine like terms: 17 + 25 = 42
25 + -10x + x2 = 42

Factor a perfect square on the left side:
(x + -5)(x + -5) = 42

Calculate the square root of the right side: 6.480740698

Break this problem into two subproblems by setting 
(x + -5) equal to 6.480740698 and -6.480740698.

Subproblem 1

x + -5 = 6.480740698 Simplifying x + -5 = 6.480740698 Reorder the terms: -5 + x = 6.480740698 Solving -5 + x = 6.480740698 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 6.480740698 + 5 Combine like terms: -5 + 5 = 0 0 + x = 6.480740698 + 5 x = 6.480740698 + 5 Combine like terms: 6.480740698 + 5 = 11.480740698 x = 11.480740698 Simplifying x = 11.480740698

Subproblem 2

x + -5 = -6.480740698 Simplifying x + -5 = -6.480740698 Reorder the terms: -5 + x = -6.480740698 Solving -5 + x = -6.480740698 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = -6.480740698 + 5 Combine like terms: -5 + 5 = 0 0 + x = -6.480740698 + 5 x = -6.480740698 + 5 Combine like terms: -6.480740698 + 5 = -1.480740698 x = -1.480740698 Simplifying x = -1.480740698

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.480740698, -1.480740698}

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