116x^2-15x=17

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Solution for 116x^2-15x=17 equation:


Simplifying
116x2 + -15x = 17

Reorder the terms:
-15x + 116x2 = 17

Solving
-15x + 116x2 = 17

Solving for variable 'x'.

Reorder the terms:
-17 + -15x + 116x2 = 17 + -17

Combine like terms: 17 + -17 = 0
-17 + -15x + 116x2 = 0

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

Divide each side by '116'.
-0.1465517241 + -0.1293103448x + x2 = 0

Move the constant term to the right:

Add '0.1465517241' to each side of the equation.
-0.1465517241 + -0.1293103448x + 0.1465517241 + x2 = 0 + 0.1465517241

Reorder the terms:
-0.1465517241 + 0.1465517241 + -0.1293103448x + x2 = 0 + 0.1465517241

Combine like terms: -0.1465517241 + 0.1465517241 = 0.0000000000
0.0000000000 + -0.1293103448x + x2 = 0 + 0.1465517241
-0.1293103448x + x2 = 0 + 0.1465517241

Combine like terms: 0 + 0.1465517241 = 0.1465517241
-0.1293103448x + x2 = 0.1465517241

The x term is -0.1293103448x.  Take half its coefficient (-0.0646551724).
Square it (0.004180291318) and add it to both sides.

Add '0.004180291318' to each side of the equation.
-0.1293103448x + 0.004180291318 + x2 = 0.1465517241 + 0.004180291318

Reorder the terms:
0.004180291318 + -0.1293103448x + x2 = 0.1465517241 + 0.004180291318

Combine like terms: 0.1465517241 + 0.004180291318 = 0.150732015418
0.004180291318 + -0.1293103448x + x2 = 0.150732015418

Factor a perfect square on the left side:
(x + -0.0646551724)(x + -0.0646551724) = 0.150732015418

Calculate the square root of the right side: 0.388242212

Break this problem into two subproblems by setting 
(x + -0.0646551724) equal to 0.388242212 and -0.388242212.

Subproblem 1

x + -0.0646551724 = 0.388242212 Simplifying x + -0.0646551724 = 0.388242212 Reorder the terms: -0.0646551724 + x = 0.388242212 Solving -0.0646551724 + x = 0.388242212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.0646551724' to each side of the equation. -0.0646551724 + 0.0646551724 + x = 0.388242212 + 0.0646551724 Combine like terms: -0.0646551724 + 0.0646551724 = 0.0000000000 0.0000000000 + x = 0.388242212 + 0.0646551724 x = 0.388242212 + 0.0646551724 Combine like terms: 0.388242212 + 0.0646551724 = 0.4528973844 x = 0.4528973844 Simplifying x = 0.4528973844

Subproblem 2

x + -0.0646551724 = -0.388242212 Simplifying x + -0.0646551724 = -0.388242212 Reorder the terms: -0.0646551724 + x = -0.388242212 Solving -0.0646551724 + x = -0.388242212 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.0646551724' to each side of the equation. -0.0646551724 + 0.0646551724 + x = -0.388242212 + 0.0646551724 Combine like terms: -0.0646551724 + 0.0646551724 = 0.0000000000 0.0000000000 + x = -0.388242212 + 0.0646551724 x = -0.388242212 + 0.0646551724 Combine like terms: -0.388242212 + 0.0646551724 = -0.3235870396 x = -0.3235870396 Simplifying x = -0.3235870396

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4528973844, -0.3235870396}

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