29x^2+15x-27=0

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Solution for 29x^2+15x-27=0 equation:


Simplifying
29x2 + 15x + -27 = 0

Reorder the terms:
-27 + 15x + 29x2 = 0

Solving
-27 + 15x + 29x2 = 0

Solving for variable 'x'.

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

Divide each side by '29'.
-0.9310344828 + 0.5172413793x + x2 = 0

Move the constant term to the right:

Add '0.9310344828' to each side of the equation.
-0.9310344828 + 0.5172413793x + 0.9310344828 + x2 = 0 + 0.9310344828

Reorder the terms:
-0.9310344828 + 0.9310344828 + 0.5172413793x + x2 = 0 + 0.9310344828

Combine like terms: -0.9310344828 + 0.9310344828 = 0.0000000000
0.0000000000 + 0.5172413793x + x2 = 0 + 0.9310344828
0.5172413793x + x2 = 0 + 0.9310344828

Combine like terms: 0 + 0.9310344828 = 0.9310344828
0.5172413793x + x2 = 0.9310344828

The x term is 0.5172413793x.  Take half its coefficient (0.2586206897).
Square it (0.06688466114) and add it to both sides.

Add '0.06688466114' to each side of the equation.
0.5172413793x + 0.06688466114 + x2 = 0.9310344828 + 0.06688466114

Reorder the terms:
0.06688466114 + 0.5172413793x + x2 = 0.9310344828 + 0.06688466114

Combine like terms: 0.9310344828 + 0.06688466114 = 0.99791914394
0.06688466114 + 0.5172413793x + x2 = 0.99791914394

Factor a perfect square on the left side:
(x + 0.2586206897)(x + 0.2586206897) = 0.99791914394

Calculate the square root of the right side: 0.99895903

Break this problem into two subproblems by setting 
(x + 0.2586206897) equal to 0.99895903 and -0.99895903.

Subproblem 1

x + 0.2586206897 = 0.99895903 Simplifying x + 0.2586206897 = 0.99895903 Reorder the terms: 0.2586206897 + x = 0.99895903 Solving 0.2586206897 + x = 0.99895903 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2586206897' to each side of the equation. 0.2586206897 + -0.2586206897 + x = 0.99895903 + -0.2586206897 Combine like terms: 0.2586206897 + -0.2586206897 = 0.0000000000 0.0000000000 + x = 0.99895903 + -0.2586206897 x = 0.99895903 + -0.2586206897 Combine like terms: 0.99895903 + -0.2586206897 = 0.7403383403 x = 0.7403383403 Simplifying x = 0.7403383403

Subproblem 2

x + 0.2586206897 = -0.99895903 Simplifying x + 0.2586206897 = -0.99895903 Reorder the terms: 0.2586206897 + x = -0.99895903 Solving 0.2586206897 + x = -0.99895903 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2586206897' to each side of the equation. 0.2586206897 + -0.2586206897 + x = -0.99895903 + -0.2586206897 Combine like terms: 0.2586206897 + -0.2586206897 = 0.0000000000 0.0000000000 + x = -0.99895903 + -0.2586206897 x = -0.99895903 + -0.2586206897 Combine like terms: -0.99895903 + -0.2586206897 = -1.2575797197 x = -1.2575797197 Simplifying x = -1.2575797197

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.7403383403, -1.2575797197}

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