x^2+10x-68=0

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Solution for x^2+10x-68=0 equation:


Simplifying
x2 + 10x + -68 = 0

Reorder the terms:
-68 + 10x + x2 = 0

Solving
-68 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '68' to each side of the equation.
-68 + 10x + 68 + x2 = 0 + 68

Reorder the terms:
-68 + 68 + 10x + x2 = 0 + 68

Combine like terms: -68 + 68 = 0
0 + 10x + x2 = 0 + 68
10x + x2 = 0 + 68

Combine like terms: 0 + 68 = 68
10x + x2 = 68

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 = 68 + 25

Reorder the terms:
25 + 10x + x2 = 68 + 25

Combine like terms: 68 + 25 = 93
25 + 10x + x2 = 93

Factor a perfect square on the left side:
(x + 5)(x + 5) = 93

Calculate the square root of the right side: 9.643650761

Break this problem into two subproblems by setting 
(x + 5) equal to 9.643650761 and -9.643650761.

Subproblem 1

x + 5 = 9.643650761 Simplifying x + 5 = 9.643650761 Reorder the terms: 5 + x = 9.643650761 Solving 5 + x = 9.643650761 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 = 9.643650761 + -5 Combine like terms: 5 + -5 = 0 0 + x = 9.643650761 + -5 x = 9.643650761 + -5 Combine like terms: 9.643650761 + -5 = 4.643650761 x = 4.643650761 Simplifying x = 4.643650761

Subproblem 2

x + 5 = -9.643650761 Simplifying x + 5 = -9.643650761 Reorder the terms: 5 + x = -9.643650761 Solving 5 + x = -9.643650761 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 = -9.643650761 + -5 Combine like terms: 5 + -5 = 0 0 + x = -9.643650761 + -5 x = -9.643650761 + -5 Combine like terms: -9.643650761 + -5 = -14.643650761 x = -14.643650761 Simplifying x = -14.643650761

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.643650761, -14.643650761}

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