8x^2+33x+14=0

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Solution for 8x^2+33x+14=0 equation:


Simplifying
8x2 + 33x + 14 = 0

Reorder the terms:
14 + 33x + 8x2 = 0

Solving
14 + 33x + 8x2 = 0

Solving for variable 'x'.

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

Divide each side by '8'.
1.75 + 4.125x + x2 = 0

Move the constant term to the right:

Add '-1.75' to each side of the equation.
1.75 + 4.125x + -1.75 + x2 = 0 + -1.75

Reorder the terms:
1.75 + -1.75 + 4.125x + x2 = 0 + -1.75

Combine like terms: 1.75 + -1.75 = 0.00
0.00 + 4.125x + x2 = 0 + -1.75
4.125x + x2 = 0 + -1.75

Combine like terms: 0 + -1.75 = -1.75
4.125x + x2 = -1.75

The x term is 4.125x.  Take half its coefficient (2.0625).
Square it (4.25390625) and add it to both sides.

Add '4.25390625' to each side of the equation.
4.125x + 4.25390625 + x2 = -1.75 + 4.25390625

Reorder the terms:
4.25390625 + 4.125x + x2 = -1.75 + 4.25390625

Combine like terms: -1.75 + 4.25390625 = 2.50390625
4.25390625 + 4.125x + x2 = 2.50390625

Factor a perfect square on the left side:
(x + 2.0625)(x + 2.0625) = 2.50390625

Calculate the square root of the right side: 1.582373613

Break this problem into two subproblems by setting 
(x + 2.0625) equal to 1.582373613 and -1.582373613.

Subproblem 1

x + 2.0625 = 1.582373613 Simplifying x + 2.0625 = 1.582373613 Reorder the terms: 2.0625 + x = 1.582373613 Solving 2.0625 + x = 1.582373613 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.0625' to each side of the equation. 2.0625 + -2.0625 + x = 1.582373613 + -2.0625 Combine like terms: 2.0625 + -2.0625 = 0.0000 0.0000 + x = 1.582373613 + -2.0625 x = 1.582373613 + -2.0625 Combine like terms: 1.582373613 + -2.0625 = -0.480126387 x = -0.480126387 Simplifying x = -0.480126387

Subproblem 2

x + 2.0625 = -1.582373613 Simplifying x + 2.0625 = -1.582373613 Reorder the terms: 2.0625 + x = -1.582373613 Solving 2.0625 + x = -1.582373613 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.0625' to each side of the equation. 2.0625 + -2.0625 + x = -1.582373613 + -2.0625 Combine like terms: 2.0625 + -2.0625 = 0.0000 0.0000 + x = -1.582373613 + -2.0625 x = -1.582373613 + -2.0625 Combine like terms: -1.582373613 + -2.0625 = -3.644873613 x = -3.644873613 Simplifying x = -3.644873613

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.480126387, -3.644873613}

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