x^2+68x-45=0

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Solution for x^2+68x-45=0 equation:


Simplifying
x2 + 68x + -45 = 0

Reorder the terms:
-45 + 68x + x2 = 0

Solving
-45 + 68x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '45' to each side of the equation.
-45 + 68x + 45 + x2 = 0 + 45

Reorder the terms:
-45 + 45 + 68x + x2 = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 68x + x2 = 0 + 45
68x + x2 = 0 + 45

Combine like terms: 0 + 45 = 45
68x + x2 = 45

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 = 45 + 1156

Reorder the terms:
1156 + 68x + x2 = 45 + 1156

Combine like terms: 45 + 1156 = 1201
1156 + 68x + x2 = 1201

Factor a perfect square on the left side:
(x + 34)(x + 34) = 1201

Calculate the square root of the right side: 34.655446902

Break this problem into two subproblems by setting 
(x + 34) equal to 34.655446902 and -34.655446902.

Subproblem 1

x + 34 = 34.655446902 Simplifying x + 34 = 34.655446902 Reorder the terms: 34 + x = 34.655446902 Solving 34 + x = 34.655446902 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 = 34.655446902 + -34 Combine like terms: 34 + -34 = 0 0 + x = 34.655446902 + -34 x = 34.655446902 + -34 Combine like terms: 34.655446902 + -34 = 0.655446902 x = 0.655446902 Simplifying x = 0.655446902

Subproblem 2

x + 34 = -34.655446902 Simplifying x + 34 = -34.655446902 Reorder the terms: 34 + x = -34.655446902 Solving 34 + x = -34.655446902 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 = -34.655446902 + -34 Combine like terms: 34 + -34 = 0 0 + x = -34.655446902 + -34 x = -34.655446902 + -34 Combine like terms: -34.655446902 + -34 = -68.655446902 x = -68.655446902 Simplifying x = -68.655446902

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.655446902, -68.655446902}

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