x^2-61=10x

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Solution for x^2-61=10x equation:


Simplifying
x2 + -61 = 10x

Reorder the terms:
-61 + x2 = 10x

Solving
-61 + x2 = 10x

Solving for variable 'x'.

Reorder the terms:
-61 + -10x + x2 = 10x + -10x

Combine like terms: 10x + -10x = 0
-61 + -10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '61' to each side of the equation.
-61 + -10x + 61 + x2 = 0 + 61

Reorder the terms:
-61 + 61 + -10x + x2 = 0 + 61

Combine like terms: -61 + 61 = 0
0 + -10x + x2 = 0 + 61
-10x + x2 = 0 + 61

Combine like terms: 0 + 61 = 61
-10x + x2 = 61

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 = 61 + 25

Reorder the terms:
25 + -10x + x2 = 61 + 25

Combine like terms: 61 + 25 = 86
25 + -10x + x2 = 86

Factor a perfect square on the left side:
(x + -5)(x + -5) = 86

Calculate the square root of the right side: 9.273618495

Break this problem into two subproblems by setting 
(x + -5) equal to 9.273618495 and -9.273618495.

Subproblem 1

x + -5 = 9.273618495 Simplifying x + -5 = 9.273618495 Reorder the terms: -5 + x = 9.273618495 Solving -5 + x = 9.273618495 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 = 9.273618495 + 5 Combine like terms: -5 + 5 = 0 0 + x = 9.273618495 + 5 x = 9.273618495 + 5 Combine like terms: 9.273618495 + 5 = 14.273618495 x = 14.273618495 Simplifying x = 14.273618495

Subproblem 2

x + -5 = -9.273618495 Simplifying x + -5 = -9.273618495 Reorder the terms: -5 + x = -9.273618495 Solving -5 + x = -9.273618495 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 = -9.273618495 + 5 Combine like terms: -5 + 5 = 0 0 + x = -9.273618495 + 5 x = -9.273618495 + 5 Combine like terms: -9.273618495 + 5 = -4.273618495 x = -4.273618495 Simplifying x = -4.273618495

Solution

The solution to the problem is based on the solutions from the subproblems. x = {14.273618495, -4.273618495}

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