16x^2-68x+27=0

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Solution for 16x^2-68x+27=0 equation:


Simplifying
16x2 + -68x + 27 = 0

Reorder the terms:
27 + -68x + 16x2 = 0

Solving
27 + -68x + 16x2 = 0

Solving for variable 'x'.

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

Divide each side by '16'.
1.6875 + -4.25x + x2 = 0

Move the constant term to the right:

Add '-1.6875' to each side of the equation.
1.6875 + -4.25x + -1.6875 + x2 = 0 + -1.6875

Reorder the terms:
1.6875 + -1.6875 + -4.25x + x2 = 0 + -1.6875

Combine like terms: 1.6875 + -1.6875 = 0.0000
0.0000 + -4.25x + x2 = 0 + -1.6875
-4.25x + x2 = 0 + -1.6875

Combine like terms: 0 + -1.6875 = -1.6875
-4.25x + x2 = -1.6875

The x term is -4.25x.  Take half its coefficient (-2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
-4.25x + 4.515625 + x2 = -1.6875 + 4.515625

Reorder the terms:
4.515625 + -4.25x + x2 = -1.6875 + 4.515625

Combine like terms: -1.6875 + 4.515625 = 2.828125
4.515625 + -4.25x + x2 = 2.828125

Factor a perfect square on the left side:
(x + -2.125)(x + -2.125) = 2.828125

Calculate the square root of the right side: 1.681703006

Break this problem into two subproblems by setting 
(x + -2.125) equal to 1.681703006 and -1.681703006.

Subproblem 1

x + -2.125 = 1.681703006 Simplifying x + -2.125 = 1.681703006 Reorder the terms: -2.125 + x = 1.681703006 Solving -2.125 + x = 1.681703006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 1.681703006 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 1.681703006 + 2.125 x = 1.681703006 + 2.125 Combine like terms: 1.681703006 + 2.125 = 3.806703006 x = 3.806703006 Simplifying x = 3.806703006

Subproblem 2

x + -2.125 = -1.681703006 Simplifying x + -2.125 = -1.681703006 Reorder the terms: -2.125 + x = -1.681703006 Solving -2.125 + x = -1.681703006 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -1.681703006 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -1.681703006 + 2.125 x = -1.681703006 + 2.125 Combine like terms: -1.681703006 + 2.125 = 0.443296994 x = 0.443296994 Simplifying x = 0.443296994

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.806703006, 0.443296994}

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