x^2+3.61x+3.24=0

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Solution for x^2+3.61x+3.24=0 equation:


Simplifying
x2 + 3.61x + 3.24 = 0

Reorder the terms:
3.24 + 3.61x + x2 = 0

Solving
3.24 + 3.61x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-3.24' to each side of the equation.
3.24 + 3.61x + -3.24 + x2 = 0 + -3.24

Reorder the terms:
3.24 + -3.24 + 3.61x + x2 = 0 + -3.24

Combine like terms: 3.24 + -3.24 = 0.00
0.00 + 3.61x + x2 = 0 + -3.24
3.61x + x2 = 0 + -3.24

Combine like terms: 0 + -3.24 = -3.24
3.61x + x2 = -3.24

The x term is 3.61x.  Take half its coefficient (1.805).
Square it (3.258025) and add it to both sides.

Add '3.258025' to each side of the equation.
3.61x + 3.258025 + x2 = -3.24 + 3.258025

Reorder the terms:
3.258025 + 3.61x + x2 = -3.24 + 3.258025

Combine like terms: -3.24 + 3.258025 = 0.018025
3.258025 + 3.61x + x2 = 0.018025

Factor a perfect square on the left side:
(x + 1.805)(x + 1.805) = 0.018025

Calculate the square root of the right side: 0.134257216

Break this problem into two subproblems by setting 
(x + 1.805) equal to 0.134257216 and -0.134257216.

Subproblem 1

x + 1.805 = 0.134257216 Simplifying x + 1.805 = 0.134257216 Reorder the terms: 1.805 + x = 0.134257216 Solving 1.805 + x = 0.134257216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.805' to each side of the equation. 1.805 + -1.805 + x = 0.134257216 + -1.805 Combine like terms: 1.805 + -1.805 = 0.000 0.000 + x = 0.134257216 + -1.805 x = 0.134257216 + -1.805 Combine like terms: 0.134257216 + -1.805 = -1.670742784 x = -1.670742784 Simplifying x = -1.670742784

Subproblem 2

x + 1.805 = -0.134257216 Simplifying x + 1.805 = -0.134257216 Reorder the terms: 1.805 + x = -0.134257216 Solving 1.805 + x = -0.134257216 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.805' to each side of the equation. 1.805 + -1.805 + x = -0.134257216 + -1.805 Combine like terms: 1.805 + -1.805 = 0.000 0.000 + x = -0.134257216 + -1.805 x = -0.134257216 + -1.805 Combine like terms: -0.134257216 + -1.805 = -1.939257216 x = -1.939257216 Simplifying x = -1.939257216

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.670742784, -1.939257216}

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