x^2+68x-170=0

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Solution for x^2+68x-170=0 equation:


Simplifying
x2 + 68x + -170 = 0

Reorder the terms:
-170 + 68x + x2 = 0

Solving
-170 + 68x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '170' to each side of the equation.
-170 + 68x + 170 + x2 = 0 + 170

Reorder the terms:
-170 + 170 + 68x + x2 = 0 + 170

Combine like terms: -170 + 170 = 0
0 + 68x + x2 = 0 + 170
68x + x2 = 0 + 170

Combine like terms: 0 + 170 = 170
68x + x2 = 170

The x term is 68x.  Take half its coefficient (34).
Square it (1156) and add it to both sides.

Add '1156' to each side of the equation.
68x + 1156 + x2 = 170 + 1156

Reorder the terms:
1156 + 68x + x2 = 170 + 1156

Combine like terms: 170 + 1156 = 1326
1156 + 68x + x2 = 1326

Factor a perfect square on the left side:
(x + 34)(x + 34) = 1326

Calculate the square root of the right side: 36.414282912

Break this problem into two subproblems by setting 
(x + 34) equal to 36.414282912 and -36.414282912.

Subproblem 1

x + 34 = 36.414282912 Simplifying x + 34 = 36.414282912 Reorder the terms: 34 + x = 36.414282912 Solving 34 + x = 36.414282912 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-34' to each side of the equation. 34 + -34 + x = 36.414282912 + -34 Combine like terms: 34 + -34 = 0 0 + x = 36.414282912 + -34 x = 36.414282912 + -34 Combine like terms: 36.414282912 + -34 = 2.414282912 x = 2.414282912 Simplifying x = 2.414282912

Subproblem 2

x + 34 = -36.414282912 Simplifying x + 34 = -36.414282912 Reorder the terms: 34 + x = -36.414282912 Solving 34 + x = -36.414282912 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-34' to each side of the equation. 34 + -34 + x = -36.414282912 + -34 Combine like terms: 34 + -34 = 0 0 + x = -36.414282912 + -34 x = -36.414282912 + -34 Combine like terms: -36.414282912 + -34 = -70.414282912 x = -70.414282912 Simplifying x = -70.414282912

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.414282912, -70.414282912}

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