11x^2+50x-1=0

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Solution for 11x^2+50x-1=0 equation:


Simplifying
11x2 + 50x + -1 = 0

Reorder the terms:
-1 + 50x + 11x2 = 0

Solving
-1 + 50x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-0.09090909091 + 4.545454545x + x2 = 0

Move the constant term to the right:

Add '0.09090909091' to each side of the equation.
-0.09090909091 + 4.545454545x + 0.09090909091 + x2 = 0 + 0.09090909091

Reorder the terms:
-0.09090909091 + 0.09090909091 + 4.545454545x + x2 = 0 + 0.09090909091

Combine like terms: -0.09090909091 + 0.09090909091 = 0.00000000000
0.00000000000 + 4.545454545x + x2 = 0 + 0.09090909091
4.545454545x + x2 = 0 + 0.09090909091

Combine like terms: 0 + 0.09090909091 = 0.09090909091
4.545454545x + x2 = 0.09090909091

The x term is 4.545454545x.  Take half its coefficient (2.272727273).
Square it (5.165289257) and add it to both sides.

Add '5.165289257' to each side of the equation.
4.545454545x + 5.165289257 + x2 = 0.09090909091 + 5.165289257

Reorder the terms:
5.165289257 + 4.545454545x + x2 = 0.09090909091 + 5.165289257

Combine like terms: 0.09090909091 + 5.165289257 = 5.25619834791
5.165289257 + 4.545454545x + x2 = 5.25619834791

Factor a perfect square on the left side:
(x + 2.272727273)(x + 2.272727273) = 5.25619834791

Calculate the square root of the right side: 2.292640039

Break this problem into two subproblems by setting 
(x + 2.272727273) equal to 2.292640039 and -2.292640039.

Subproblem 1

x + 2.272727273 = 2.292640039 Simplifying x + 2.272727273 = 2.292640039 Reorder the terms: 2.272727273 + x = 2.292640039 Solving 2.272727273 + x = 2.292640039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.272727273' to each side of the equation. 2.272727273 + -2.272727273 + x = 2.292640039 + -2.272727273 Combine like terms: 2.272727273 + -2.272727273 = 0.000000000 0.000000000 + x = 2.292640039 + -2.272727273 x = 2.292640039 + -2.272727273 Combine like terms: 2.292640039 + -2.272727273 = 0.019912766 x = 0.019912766 Simplifying x = 0.019912766

Subproblem 2

x + 2.272727273 = -2.292640039 Simplifying x + 2.272727273 = -2.292640039 Reorder the terms: 2.272727273 + x = -2.292640039 Solving 2.272727273 + x = -2.292640039 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.272727273' to each side of the equation. 2.272727273 + -2.272727273 + x = -2.292640039 + -2.272727273 Combine like terms: 2.272727273 + -2.272727273 = 0.000000000 0.000000000 + x = -2.292640039 + -2.272727273 x = -2.292640039 + -2.272727273 Combine like terms: -2.292640039 + -2.272727273 = -4.565367312 x = -4.565367312 Simplifying x = -4.565367312

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.019912766, -4.565367312}

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