x^2+3x-188=0

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Solution for x^2+3x-188=0 equation:


Simplifying
x2 + 3x + -188 = 0

Reorder the terms:
-188 + 3x + x2 = 0

Solving
-188 + 3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '188' to each side of the equation.
-188 + 3x + 188 + x2 = 0 + 188

Reorder the terms:
-188 + 188 + 3x + x2 = 0 + 188

Combine like terms: -188 + 188 = 0
0 + 3x + x2 = 0 + 188
3x + x2 = 0 + 188

Combine like terms: 0 + 188 = 188
3x + x2 = 188

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 188 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 188 + 2.25

Combine like terms: 188 + 2.25 = 190.25
2.25 + 3x + x2 = 190.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 190.25

Calculate the square root of the right side: 13.793114224

Break this problem into two subproblems by setting 
(x + 1.5) equal to 13.793114224 and -13.793114224.

Subproblem 1

x + 1.5 = 13.793114224 Simplifying x + 1.5 = 13.793114224 Reorder the terms: 1.5 + x = 13.793114224 Solving 1.5 + x = 13.793114224 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 13.793114224 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 13.793114224 + -1.5 x = 13.793114224 + -1.5 Combine like terms: 13.793114224 + -1.5 = 12.293114224 x = 12.293114224 Simplifying x = 12.293114224

Subproblem 2

x + 1.5 = -13.793114224 Simplifying x + 1.5 = -13.793114224 Reorder the terms: 1.5 + x = -13.793114224 Solving 1.5 + x = -13.793114224 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -13.793114224 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -13.793114224 + -1.5 x = -13.793114224 + -1.5 Combine like terms: -13.793114224 + -1.5 = -15.293114224 x = -15.293114224 Simplifying x = -15.293114224

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.293114224, -15.293114224}

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