17x^2+18x-19=0

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Solution for 17x^2+18x-19=0 equation:


Simplifying
17x2 + 18x + -19 = 0

Reorder the terms:
-19 + 18x + 17x2 = 0

Solving
-19 + 18x + 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'.
-1.117647059 + 1.058823529x + x2 = 0

Move the constant term to the right:

Add '1.117647059' to each side of the equation.
-1.117647059 + 1.058823529x + 1.117647059 + x2 = 0 + 1.117647059

Reorder the terms:
-1.117647059 + 1.117647059 + 1.058823529x + x2 = 0 + 1.117647059

Combine like terms: -1.117647059 + 1.117647059 = 0.000000000
0.000000000 + 1.058823529x + x2 = 0 + 1.117647059
1.058823529x + x2 = 0 + 1.117647059

Combine like terms: 0 + 1.117647059 = 1.117647059
1.058823529x + x2 = 1.117647059

The x term is 1.058823529x.  Take half its coefficient (0.5294117645).
Square it (0.2802768164) and add it to both sides.

Add '0.2802768164' to each side of the equation.
1.058823529x + 0.2802768164 + x2 = 1.117647059 + 0.2802768164

Reorder the terms:
0.2802768164 + 1.058823529x + x2 = 1.117647059 + 0.2802768164

Combine like terms: 1.117647059 + 0.2802768164 = 1.3979238754
0.2802768164 + 1.058823529x + x2 = 1.3979238754

Factor a perfect square on the left side:
(x + 0.5294117645)(x + 0.5294117645) = 1.3979238754

Calculate the square root of the right side: 1.182338308

Break this problem into two subproblems by setting 
(x + 0.5294117645) equal to 1.182338308 and -1.182338308.

Subproblem 1

x + 0.5294117645 = 1.182338308 Simplifying x + 0.5294117645 = 1.182338308 Reorder the terms: 0.5294117645 + x = 1.182338308 Solving 0.5294117645 + x = 1.182338308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5294117645' to each side of the equation. 0.5294117645 + -0.5294117645 + x = 1.182338308 + -0.5294117645 Combine like terms: 0.5294117645 + -0.5294117645 = 0.0000000000 0.0000000000 + x = 1.182338308 + -0.5294117645 x = 1.182338308 + -0.5294117645 Combine like terms: 1.182338308 + -0.5294117645 = 0.6529265435 x = 0.6529265435 Simplifying x = 0.6529265435

Subproblem 2

x + 0.5294117645 = -1.182338308 Simplifying x + 0.5294117645 = -1.182338308 Reorder the terms: 0.5294117645 + x = -1.182338308 Solving 0.5294117645 + x = -1.182338308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5294117645' to each side of the equation. 0.5294117645 + -0.5294117645 + x = -1.182338308 + -0.5294117645 Combine like terms: 0.5294117645 + -0.5294117645 = 0.0000000000 0.0000000000 + x = -1.182338308 + -0.5294117645 x = -1.182338308 + -0.5294117645 Combine like terms: -1.182338308 + -0.5294117645 = -1.7117500725 x = -1.7117500725 Simplifying x = -1.7117500725

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.6529265435, -1.7117500725}

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