x^2+1.67x-125.25=0

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Solution for x^2+1.67x-125.25=0 equation:


Simplifying
x2 + 1.67x + -125.25 = 0

Reorder the terms:
-125.25 + 1.67x + x2 = 0

Solving
-125.25 + 1.67x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '125.25' to each side of the equation.
-125.25 + 1.67x + 125.25 + x2 = 0 + 125.25

Reorder the terms:
-125.25 + 125.25 + 1.67x + x2 = 0 + 125.25

Combine like terms: -125.25 + 125.25 = 0.00
0.00 + 1.67x + x2 = 0 + 125.25
1.67x + x2 = 0 + 125.25

Combine like terms: 0 + 125.25 = 125.25
1.67x + x2 = 125.25

The x term is 1.67x.  Take half its coefficient (0.835).
Square it (0.697225) and add it to both sides.

Add '0.697225' to each side of the equation.
1.67x + 0.697225 + x2 = 125.25 + 0.697225

Reorder the terms:
0.697225 + 1.67x + x2 = 125.25 + 0.697225

Combine like terms: 125.25 + 0.697225 = 125.947225
0.697225 + 1.67x + x2 = 125.947225

Factor a perfect square on the left side:
(x + 0.835)(x + 0.835) = 125.947225

Calculate the square root of the right side: 11.222621129

Break this problem into two subproblems by setting 
(x + 0.835) equal to 11.222621129 and -11.222621129.

Subproblem 1

x + 0.835 = 11.222621129 Simplifying x + 0.835 = 11.222621129 Reorder the terms: 0.835 + x = 11.222621129 Solving 0.835 + x = 11.222621129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.835' to each side of the equation. 0.835 + -0.835 + x = 11.222621129 + -0.835 Combine like terms: 0.835 + -0.835 = 0.000 0.000 + x = 11.222621129 + -0.835 x = 11.222621129 + -0.835 Combine like terms: 11.222621129 + -0.835 = 10.387621129 x = 10.387621129 Simplifying x = 10.387621129

Subproblem 2

x + 0.835 = -11.222621129 Simplifying x + 0.835 = -11.222621129 Reorder the terms: 0.835 + x = -11.222621129 Solving 0.835 + x = -11.222621129 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.835' to each side of the equation. 0.835 + -0.835 + x = -11.222621129 + -0.835 Combine like terms: 0.835 + -0.835 = 0.000 0.000 + x = -11.222621129 + -0.835 x = -11.222621129 + -0.835 Combine like terms: -11.222621129 + -0.835 = -12.057621129 x = -12.057621129 Simplifying x = -12.057621129

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.387621129, -12.057621129}

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