17x^2-6x-28=0

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Solution for 17x^2-6x-28=0 equation:


Simplifying
17x2 + -6x + -28 = 0

Reorder the terms:
-28 + -6x + 17x2 = 0

Solving
-28 + -6x + 17x2 = 0

Solving for variable 'x'.

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

Divide each side by '17'.
-1.647058824 + -0.3529411765x + x2 = 0

Move the constant term to the right:

Add '1.647058824' to each side of the equation.
-1.647058824 + -0.3529411765x + 1.647058824 + x2 = 0 + 1.647058824

Reorder the terms:
-1.647058824 + 1.647058824 + -0.3529411765x + x2 = 0 + 1.647058824

Combine like terms: -1.647058824 + 1.647058824 = 0.000000000
0.000000000 + -0.3529411765x + x2 = 0 + 1.647058824
-0.3529411765x + x2 = 0 + 1.647058824

Combine like terms: 0 + 1.647058824 = 1.647058824
-0.3529411765x + x2 = 1.647058824

The x term is -0.3529411765x.  Take half its coefficient (-0.1764705883).
Square it (0.03114186853) and add it to both sides.

Add '0.03114186853' to each side of the equation.
-0.3529411765x + 0.03114186853 + x2 = 1.647058824 + 0.03114186853

Reorder the terms:
0.03114186853 + -0.3529411765x + x2 = 1.647058824 + 0.03114186853

Combine like terms: 1.647058824 + 0.03114186853 = 1.67820069253
0.03114186853 + -0.3529411765x + x2 = 1.67820069253

Factor a perfect square on the left side:
(x + -0.1764705883)(x + -0.1764705883) = 1.67820069253

Calculate the square root of the right side: 1.295453856

Break this problem into two subproblems by setting 
(x + -0.1764705883) equal to 1.295453856 and -1.295453856.

Subproblem 1

x + -0.1764705883 = 1.295453856 Simplifying x + -0.1764705883 = 1.295453856 Reorder the terms: -0.1764705883 + x = 1.295453856 Solving -0.1764705883 + x = 1.295453856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1764705883' to each side of the equation. -0.1764705883 + 0.1764705883 + x = 1.295453856 + 0.1764705883 Combine like terms: -0.1764705883 + 0.1764705883 = 0.0000000000 0.0000000000 + x = 1.295453856 + 0.1764705883 x = 1.295453856 + 0.1764705883 Combine like terms: 1.295453856 + 0.1764705883 = 1.4719244443 x = 1.4719244443 Simplifying x = 1.4719244443

Subproblem 2

x + -0.1764705883 = -1.295453856 Simplifying x + -0.1764705883 = -1.295453856 Reorder the terms: -0.1764705883 + x = -1.295453856 Solving -0.1764705883 + x = -1.295453856 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1764705883' to each side of the equation. -0.1764705883 + 0.1764705883 + x = -1.295453856 + 0.1764705883 Combine like terms: -0.1764705883 + 0.1764705883 = 0.0000000000 0.0000000000 + x = -1.295453856 + 0.1764705883 x = -1.295453856 + 0.1764705883 Combine like terms: -1.295453856 + 0.1764705883 = -1.1189832677 x = -1.1189832677 Simplifying x = -1.1189832677

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.4719244443, -1.1189832677}

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