1.44224957x^2+1.709975947x-12=0

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Solution for 1.44224957x^2+1.709975947x-12=0 equation:


Simplifying
1.44224957x2 + 1.709975947x + -12 = 0

Reorder the terms:
-12 + 1.709975947x + 1.44224957x2 = 0

Solving
-12 + 1.709975947x + 1.44224957x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
1.44224957 the coefficient of the squared term: 

Divide each side by '1.44224957'.
-8.320335294 + 1.185631102x + x2 = 0

Move the constant term to the right:

Add '8.320335294' to each side of the equation.
-8.320335294 + 1.185631102x + 8.320335294 + x2 = 0 + 8.320335294

Reorder the terms:
-8.320335294 + 8.320335294 + 1.185631102x + x2 = 0 + 8.320335294

Combine like terms: -8.320335294 + 8.320335294 = 0.000000000
0.000000000 + 1.185631102x + x2 = 0 + 8.320335294
1.185631102x + x2 = 0 + 8.320335294

Combine like terms: 0 + 8.320335294 = 8.320335294
1.185631102x + x2 = 8.320335294

The x term is 1.185631102x.  Take half its coefficient (0.592815551).
Square it (0.3514302775) and add it to both sides.

Add '0.3514302775' to each side of the equation.
1.185631102x + 0.3514302775 + x2 = 8.320335294 + 0.3514302775

Reorder the terms:
0.3514302775 + 1.185631102x + x2 = 8.320335294 + 0.3514302775

Combine like terms: 8.320335294 + 0.3514302775 = 8.6717655715
0.3514302775 + 1.185631102x + x2 = 8.6717655715

Factor a perfect square on the left side:
(x + 0.592815551)(x + 0.592815551) = 8.6717655715

Calculate the square root of the right side: 2.944786167

Break this problem into two subproblems by setting 
(x + 0.592815551) equal to 2.944786167 and -2.944786167.

Subproblem 1

x + 0.592815551 = 2.944786167 Simplifying x + 0.592815551 = 2.944786167 Reorder the terms: 0.592815551 + x = 2.944786167 Solving 0.592815551 + x = 2.944786167 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.592815551' to each side of the equation. 0.592815551 + -0.592815551 + x = 2.944786167 + -0.592815551 Combine like terms: 0.592815551 + -0.592815551 = 0.000000000 0.000000000 + x = 2.944786167 + -0.592815551 x = 2.944786167 + -0.592815551 Combine like terms: 2.944786167 + -0.592815551 = 2.351970616 x = 2.351970616 Simplifying x = 2.351970616

Subproblem 2

x + 0.592815551 = -2.944786167 Simplifying x + 0.592815551 = -2.944786167 Reorder the terms: 0.592815551 + x = -2.944786167 Solving 0.592815551 + x = -2.944786167 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.592815551' to each side of the equation. 0.592815551 + -0.592815551 + x = -2.944786167 + -0.592815551 Combine like terms: 0.592815551 + -0.592815551 = 0.000000000 0.000000000 + x = -2.944786167 + -0.592815551 x = -2.944786167 + -0.592815551 Combine like terms: -2.944786167 + -0.592815551 = -3.537601718 x = -3.537601718 Simplifying x = -3.537601718

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.351970616, -3.537601718}

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