17x^2+14x-8=0

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Solution for 17x^2+14x-8=0 equation:


Simplifying
17x2 + 14x + -8 = 0

Reorder the terms:
-8 + 14x + 17x2 = 0

Solving
-8 + 14x + 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'.
-0.4705882353 + 0.8235294118x + x2 = 0

Move the constant term to the right:

Add '0.4705882353' to each side of the equation.
-0.4705882353 + 0.8235294118x + 0.4705882353 + x2 = 0 + 0.4705882353

Reorder the terms:
-0.4705882353 + 0.4705882353 + 0.8235294118x + x2 = 0 + 0.4705882353

Combine like terms: -0.4705882353 + 0.4705882353 = 0.0000000000
0.0000000000 + 0.8235294118x + x2 = 0 + 0.4705882353
0.8235294118x + x2 = 0 + 0.4705882353

Combine like terms: 0 + 0.4705882353 = 0.4705882353
0.8235294118x + x2 = 0.4705882353

The x term is 0.8235294118x.  Take half its coefficient (0.4117647059).
Square it (0.1695501730) and add it to both sides.

Add '0.1695501730' to each side of the equation.
0.8235294118x + 0.1695501730 + x2 = 0.4705882353 + 0.1695501730

Reorder the terms:
0.1695501730 + 0.8235294118x + x2 = 0.4705882353 + 0.1695501730

Combine like terms: 0.4705882353 + 0.1695501730 = 0.6401384083
0.1695501730 + 0.8235294118x + x2 = 0.6401384083

Factor a perfect square on the left side:
(x + 0.4117647059)(x + 0.4117647059) = 0.6401384083

Calculate the square root of the right side: 0.800086501

Break this problem into two subproblems by setting 
(x + 0.4117647059) equal to 0.800086501 and -0.800086501.

Subproblem 1

x + 0.4117647059 = 0.800086501 Simplifying x + 0.4117647059 = 0.800086501 Reorder the terms: 0.4117647059 + x = 0.800086501 Solving 0.4117647059 + x = 0.800086501 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4117647059' to each side of the equation. 0.4117647059 + -0.4117647059 + x = 0.800086501 + -0.4117647059 Combine like terms: 0.4117647059 + -0.4117647059 = 0.0000000000 0.0000000000 + x = 0.800086501 + -0.4117647059 x = 0.800086501 + -0.4117647059 Combine like terms: 0.800086501 + -0.4117647059 = 0.3883217951 x = 0.3883217951 Simplifying x = 0.3883217951

Subproblem 2

x + 0.4117647059 = -0.800086501 Simplifying x + 0.4117647059 = -0.800086501 Reorder the terms: 0.4117647059 + x = -0.800086501 Solving 0.4117647059 + x = -0.800086501 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4117647059' to each side of the equation. 0.4117647059 + -0.4117647059 + x = -0.800086501 + -0.4117647059 Combine like terms: 0.4117647059 + -0.4117647059 = 0.0000000000 0.0000000000 + x = -0.800086501 + -0.4117647059 x = -0.800086501 + -0.4117647059 Combine like terms: -0.800086501 + -0.4117647059 = -1.2118512069 x = -1.2118512069 Simplifying x = -1.2118512069

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.3883217951, -1.2118512069}

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