x^2+2.333x-3=0

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Solution for x^2+2.333x-3=0 equation:


Simplifying
x2 + 2.333x + -3 = 0

Reorder the terms:
-3 + 2.333x + x2 = 0

Solving
-3 + 2.333x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 2.333x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 2.333x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 2.333x + x2 = 0 + 3
2.333x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
2.333x + x2 = 3

The x term is 2.333x.  Take half its coefficient (1.1665).
Square it (1.36072225) and add it to both sides.

Add '1.36072225' to each side of the equation.
2.333x + 1.36072225 + x2 = 3 + 1.36072225

Reorder the terms:
1.36072225 + 2.333x + x2 = 3 + 1.36072225

Combine like terms: 3 + 1.36072225 = 4.36072225
1.36072225 + 2.333x + x2 = 4.36072225

Factor a perfect square on the left side:
(x + 1.1665)(x + 1.1665) = 4.36072225

Calculate the square root of the right side: 2.088234242

Break this problem into two subproblems by setting 
(x + 1.1665) equal to 2.088234242 and -2.088234242.

Subproblem 1

x + 1.1665 = 2.088234242 Simplifying x + 1.1665 = 2.088234242 Reorder the terms: 1.1665 + x = 2.088234242 Solving 1.1665 + x = 2.088234242 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1665' to each side of the equation. 1.1665 + -1.1665 + x = 2.088234242 + -1.1665 Combine like terms: 1.1665 + -1.1665 = 0.0000 0.0000 + x = 2.088234242 + -1.1665 x = 2.088234242 + -1.1665 Combine like terms: 2.088234242 + -1.1665 = 0.921734242 x = 0.921734242 Simplifying x = 0.921734242

Subproblem 2

x + 1.1665 = -2.088234242 Simplifying x + 1.1665 = -2.088234242 Reorder the terms: 1.1665 + x = -2.088234242 Solving 1.1665 + x = -2.088234242 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1665' to each side of the equation. 1.1665 + -1.1665 + x = -2.088234242 + -1.1665 Combine like terms: 1.1665 + -1.1665 = 0.0000 0.0000 + x = -2.088234242 + -1.1665 x = -2.088234242 + -1.1665 Combine like terms: -2.088234242 + -1.1665 = -3.254734242 x = -3.254734242 Simplifying x = -3.254734242

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.921734242, -3.254734242}

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