17x^2+3x-56=0

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Solution for 17x^2+3x-56=0 equation:


Simplifying
17x2 + 3x + -56 = 0

Reorder the terms:
-56 + 3x + 17x2 = 0

Solving
-56 + 3x + 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'.
-3.294117647 + 0.1764705882x + x2 = 0

Move the constant term to the right:

Add '3.294117647' to each side of the equation.
-3.294117647 + 0.1764705882x + 3.294117647 + x2 = 0 + 3.294117647

Reorder the terms:
-3.294117647 + 3.294117647 + 0.1764705882x + x2 = 0 + 3.294117647

Combine like terms: -3.294117647 + 3.294117647 = 0.000000000
0.000000000 + 0.1764705882x + x2 = 0 + 3.294117647
0.1764705882x + x2 = 0 + 3.294117647

Combine like terms: 0 + 3.294117647 = 3.294117647
0.1764705882x + x2 = 3.294117647

The x term is 0.1764705882x.  Take half its coefficient (0.0882352941).
Square it (0.007785467125) and add it to both sides.

Add '0.007785467125' to each side of the equation.
0.1764705882x + 0.007785467125 + x2 = 3.294117647 + 0.007785467125

Reorder the terms:
0.007785467125 + 0.1764705882x + x2 = 3.294117647 + 0.007785467125

Combine like terms: 3.294117647 + 0.007785467125 = 3.301903114125
0.007785467125 + 0.1764705882x + x2 = 3.301903114125

Factor a perfect square on the left side:
(x + 0.0882352941)(x + 0.0882352941) = 3.301903114125

Calculate the square root of the right side: 1.817113952

Break this problem into two subproblems by setting 
(x + 0.0882352941) equal to 1.817113952 and -1.817113952.

Subproblem 1

x + 0.0882352941 = 1.817113952 Simplifying x + 0.0882352941 = 1.817113952 Reorder the terms: 0.0882352941 + x = 1.817113952 Solving 0.0882352941 + x = 1.817113952 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + x = 1.817113952 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + x = 1.817113952 + -0.0882352941 x = 1.817113952 + -0.0882352941 Combine like terms: 1.817113952 + -0.0882352941 = 1.7288786579 x = 1.7288786579 Simplifying x = 1.7288786579

Subproblem 2

x + 0.0882352941 = -1.817113952 Simplifying x + 0.0882352941 = -1.817113952 Reorder the terms: 0.0882352941 + x = -1.817113952 Solving 0.0882352941 + x = -1.817113952 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.0882352941' to each side of the equation. 0.0882352941 + -0.0882352941 + x = -1.817113952 + -0.0882352941 Combine like terms: 0.0882352941 + -0.0882352941 = 0.0000000000 0.0000000000 + x = -1.817113952 + -0.0882352941 x = -1.817113952 + -0.0882352941 Combine like terms: -1.817113952 + -0.0882352941 = -1.9053492461 x = -1.9053492461 Simplifying x = -1.9053492461

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.7288786579, -1.9053492461}

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