-51x^2+11x+6=0

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Solution for -51x^2+11x+6=0 equation:


Simplifying
-51x2 + 11x + 6 = 0

Reorder the terms:
6 + 11x + -51x2 = 0

Solving
6 + 11x + -51x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-51 the coefficient of the squared term: 

Divide each side by '-51'.
-0.1176470588 + -0.2156862745x + x2 = 0

Move the constant term to the right:

Add '0.1176470588' to each side of the equation.
-0.1176470588 + -0.2156862745x + 0.1176470588 + x2 = 0 + 0.1176470588

Reorder the terms:
-0.1176470588 + 0.1176470588 + -0.2156862745x + x2 = 0 + 0.1176470588

Combine like terms: -0.1176470588 + 0.1176470588 = 0.0000000000
0.0000000000 + -0.2156862745x + x2 = 0 + 0.1176470588
-0.2156862745x + x2 = 0 + 0.1176470588

Combine like terms: 0 + 0.1176470588 = 0.1176470588
-0.2156862745x + x2 = 0.1176470588

The x term is -0.2156862745x.  Take half its coefficient (-0.1078431373).
Square it (0.01163014226) and add it to both sides.

Add '0.01163014226' to each side of the equation.
-0.2156862745x + 0.01163014226 + x2 = 0.1176470588 + 0.01163014226

Reorder the terms:
0.01163014226 + -0.2156862745x + x2 = 0.1176470588 + 0.01163014226

Combine like terms: 0.1176470588 + 0.01163014226 = 0.12927720106
0.01163014226 + -0.2156862745x + x2 = 0.12927720106

Factor a perfect square on the left side:
(x + -0.1078431373)(x + -0.1078431373) = 0.12927720106

Calculate the square root of the right side: 0.359551389

Break this problem into two subproblems by setting 
(x + -0.1078431373) equal to 0.359551389 and -0.359551389.

Subproblem 1

x + -0.1078431373 = 0.359551389 Simplifying x + -0.1078431373 = 0.359551389 Reorder the terms: -0.1078431373 + x = 0.359551389 Solving -0.1078431373 + x = 0.359551389 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1078431373' to each side of the equation. -0.1078431373 + 0.1078431373 + x = 0.359551389 + 0.1078431373 Combine like terms: -0.1078431373 + 0.1078431373 = 0.0000000000 0.0000000000 + x = 0.359551389 + 0.1078431373 x = 0.359551389 + 0.1078431373 Combine like terms: 0.359551389 + 0.1078431373 = 0.4673945263 x = 0.4673945263 Simplifying x = 0.4673945263

Subproblem 2

x + -0.1078431373 = -0.359551389 Simplifying x + -0.1078431373 = -0.359551389 Reorder the terms: -0.1078431373 + x = -0.359551389 Solving -0.1078431373 + x = -0.359551389 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1078431373' to each side of the equation. -0.1078431373 + 0.1078431373 + x = -0.359551389 + 0.1078431373 Combine like terms: -0.1078431373 + 0.1078431373 = 0.0000000000 0.0000000000 + x = -0.359551389 + 0.1078431373 x = -0.359551389 + 0.1078431373 Combine like terms: -0.359551389 + 0.1078431373 = -0.2517082517 x = -0.2517082517 Simplifying x = -0.2517082517

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.4673945263, -0.2517082517}

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