11x^2-19x+4=

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Solution for 11x^2-19x+4= equation:


Simplifying
11x2 + -19x + 4 = 0

Reorder the terms:
4 + -19x + 11x2 = 0

Solving
4 + -19x + 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'.
0.3636363636 + -1.727272727x + x2 = 0

Move the constant term to the right:

Add '-0.3636363636' to each side of the equation.
0.3636363636 + -1.727272727x + -0.3636363636 + x2 = 0 + -0.3636363636

Reorder the terms:
0.3636363636 + -0.3636363636 + -1.727272727x + x2 = 0 + -0.3636363636

Combine like terms: 0.3636363636 + -0.3636363636 = 0.0000000000
0.0000000000 + -1.727272727x + x2 = 0 + -0.3636363636
-1.727272727x + x2 = 0 + -0.3636363636

Combine like terms: 0 + -0.3636363636 = -0.3636363636
-1.727272727x + x2 = -0.3636363636

The x term is -1.727272727x.  Take half its coefficient (-0.8636363635).
Square it (0.7458677684) and add it to both sides.

Add '0.7458677684' to each side of the equation.
-1.727272727x + 0.7458677684 + x2 = -0.3636363636 + 0.7458677684

Reorder the terms:
0.7458677684 + -1.727272727x + x2 = -0.3636363636 + 0.7458677684

Combine like terms: -0.3636363636 + 0.7458677684 = 0.3822314048
0.7458677684 + -1.727272727x + x2 = 0.3822314048

Factor a perfect square on the left side:
(x + -0.8636363635)(x + -0.8636363635) = 0.3822314048

Calculate the square root of the right side: 0.618248659

Break this problem into two subproblems by setting 
(x + -0.8636363635) equal to 0.618248659 and -0.618248659.

Subproblem 1

x + -0.8636363635 = 0.618248659 Simplifying x + -0.8636363635 = 0.618248659 Reorder the terms: -0.8636363635 + x = 0.618248659 Solving -0.8636363635 + x = 0.618248659 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8636363635' to each side of the equation. -0.8636363635 + 0.8636363635 + x = 0.618248659 + 0.8636363635 Combine like terms: -0.8636363635 + 0.8636363635 = 0.0000000000 0.0000000000 + x = 0.618248659 + 0.8636363635 x = 0.618248659 + 0.8636363635 Combine like terms: 0.618248659 + 0.8636363635 = 1.4818850225 x = 1.4818850225 Simplifying x = 1.4818850225

Subproblem 2

x + -0.8636363635 = -0.618248659 Simplifying x + -0.8636363635 = -0.618248659 Reorder the terms: -0.8636363635 + x = -0.618248659 Solving -0.8636363635 + x = -0.618248659 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8636363635' to each side of the equation. -0.8636363635 + 0.8636363635 + x = -0.618248659 + 0.8636363635 Combine like terms: -0.8636363635 + 0.8636363635 = 0.0000000000 0.0000000000 + x = -0.618248659 + 0.8636363635 x = -0.618248659 + 0.8636363635 Combine like terms: -0.618248659 + 0.8636363635 = 0.2453877045 x = 0.2453877045 Simplifying x = 0.2453877045

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.4818850225, 0.2453877045}

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