x^2+10x-146=0

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Solution for x^2+10x-146=0 equation:


Simplifying
x2 + 10x + -146 = 0

Reorder the terms:
-146 + 10x + x2 = 0

Solving
-146 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '146' to each side of the equation.
-146 + 10x + 146 + x2 = 0 + 146

Reorder the terms:
-146 + 146 + 10x + x2 = 0 + 146

Combine like terms: -146 + 146 = 0
0 + 10x + x2 = 0 + 146
10x + x2 = 0 + 146

Combine like terms: 0 + 146 = 146
10x + x2 = 146

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 = 146 + 25

Reorder the terms:
25 + 10x + x2 = 146 + 25

Combine like terms: 146 + 25 = 171
25 + 10x + x2 = 171

Factor a perfect square on the left side:
(x + 5)(x + 5) = 171

Calculate the square root of the right side: 13.076696831

Break this problem into two subproblems by setting 
(x + 5) equal to 13.076696831 and -13.076696831.

Subproblem 1

x + 5 = 13.076696831 Simplifying x + 5 = 13.076696831 Reorder the terms: 5 + x = 13.076696831 Solving 5 + x = 13.076696831 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 = 13.076696831 + -5 Combine like terms: 5 + -5 = 0 0 + x = 13.076696831 + -5 x = 13.076696831 + -5 Combine like terms: 13.076696831 + -5 = 8.076696831 x = 8.076696831 Simplifying x = 8.076696831

Subproblem 2

x + 5 = -13.076696831 Simplifying x + 5 = -13.076696831 Reorder the terms: 5 + x = -13.076696831 Solving 5 + x = -13.076696831 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 = -13.076696831 + -5 Combine like terms: 5 + -5 = 0 0 + x = -13.076696831 + -5 x = -13.076696831 + -5 Combine like terms: -13.076696831 + -5 = -18.076696831 x = -18.076696831 Simplifying x = -18.076696831

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.076696831, -18.076696831}

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