4x^2+17x-5=0

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Solution for 4x^2+17x-5=0 equation: 


Simplifying
4x2 + 17x + -5 = 0

Reorder the terms:
-5 + 17x + 4x2 = 0

Solving
-5 + 17x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-1.25 + 4.25x + x2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + 4.25x + 1.25 + x2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + 4.25x + x2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + 4.25x + x2 = 0 + 1.25
4.25x + x2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
4.25x + x2 = 1.25

The x term is 4.25x.  Take half its coefficient (2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
4.25x + 4.515625 + x2 = 1.25 + 4.515625

Reorder the terms:
4.515625 + 4.25x + x2 = 1.25 + 4.515625

Combine like terms: 1.25 + 4.515625 = 5.765625
4.515625 + 4.25x + x2 = 5.765625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 5.765625

Calculate the square root of the right side: 2.401171589

Break this problem into two subproblems by setting 
(x + 2.125) equal to 2.401171589 and -2.401171589.


Subproblem 1
x + 2.125 = 2.401171589

Simplifying
x + 2.125 = 2.401171589

Reorder the terms:
2.125 + x = 2.401171589

Solving
2.125 + x = 2.401171589

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.125' to each side of the equation.
2.125 + -2.125 + x = 2.401171589 + -2.125

Combine like terms: 2.125 + -2.125 = 0.000
0.000 + x = 2.401171589 + -2.125
x = 2.401171589 + -2.125

Combine like terms: 2.401171589 + -2.125 = 0.276171589
x = 0.276171589

Simplifying
x = 0.276171589


Subproblem 2
x + 2.125 = -2.401171589

Simplifying
x + 2.125 = -2.401171589

Reorder the terms:
2.125 + x = -2.401171589

Solving
2.125 + x = -2.401171589

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2.125' to each side of the equation.
2.125 + -2.125 + x = -2.401171589 + -2.125

Combine like terms: 2.125 + -2.125 = 0.000
0.000 + x = -2.401171589 + -2.125
x = -2.401171589 + -2.125

Combine like terms: -2.401171589 + -2.125 = -4.526171589
x = -4.526171589

Simplifying
x = -4.526171589


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {0.276171589, -4.526171589}

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