14x^2-111x+8=0

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Solution for 14x^2-111x+8=0 equation:


Simplifying
14x2 + -111x + 8 = 0

Reorder the terms:
8 + -111x + 14x2 = 0

Solving
8 + -111x + 14x2 = 0

Solving for variable 'x'.

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

Divide each side by '14'.
0.5714285714 + -7.928571429x + x2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + -7.928571429x + -0.5714285714 + x2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + -7.928571429x + x2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + -7.928571429x + x2 = 0 + -0.5714285714
-7.928571429x + x2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
-7.928571429x + x2 = -0.5714285714

The x term is -7.928571429x.  Take half its coefficient (-3.964285715).
Square it (15.71556123) and add it to both sides.

Add '15.71556123' to each side of the equation.
-7.928571429x + 15.71556123 + x2 = -0.5714285714 + 15.71556123

Reorder the terms:
15.71556123 + -7.928571429x + x2 = -0.5714285714 + 15.71556123

Combine like terms: -0.5714285714 + 15.71556123 = 15.1441326586
15.71556123 + -7.928571429x + x2 = 15.1441326586

Factor a perfect square on the left side:
(x + -3.964285715)(x + -3.964285715) = 15.1441326586

Calculate the square root of the right side: 3.891546307

Break this problem into two subproblems by setting 
(x + -3.964285715) equal to 3.891546307 and -3.891546307.

Subproblem 1

x + -3.964285715 = 3.891546307 Simplifying x + -3.964285715 = 3.891546307 Reorder the terms: -3.964285715 + x = 3.891546307 Solving -3.964285715 + x = 3.891546307 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.964285715' to each side of the equation. -3.964285715 + 3.964285715 + x = 3.891546307 + 3.964285715 Combine like terms: -3.964285715 + 3.964285715 = 0.000000000 0.000000000 + x = 3.891546307 + 3.964285715 x = 3.891546307 + 3.964285715 Combine like terms: 3.891546307 + 3.964285715 = 7.855832022 x = 7.855832022 Simplifying x = 7.855832022

Subproblem 2

x + -3.964285715 = -3.891546307 Simplifying x + -3.964285715 = -3.891546307 Reorder the terms: -3.964285715 + x = -3.891546307 Solving -3.964285715 + x = -3.891546307 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.964285715' to each side of the equation. -3.964285715 + 3.964285715 + x = -3.891546307 + 3.964285715 Combine like terms: -3.964285715 + 3.964285715 = 0.000000000 0.000000000 + x = -3.891546307 + 3.964285715 x = -3.891546307 + 3.964285715 Combine like terms: -3.891546307 + 3.964285715 = 0.072739408 x = 0.072739408 Simplifying x = 0.072739408

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.855832022, 0.072739408}

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