4x^2-6x-17=0

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Solution for 4x^2-6x-17=0 equation:


Simplifying
4x2 + -6x + -17 = 0

Reorder the terms:
-17 + -6x + 4x2 = 0

Solving
-17 + -6x + 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'.
-4.25 + -1.5x + x2 = 0

Move the constant term to the right:

Add '4.25' to each side of the equation.
-4.25 + -1.5x + 4.25 + x2 = 0 + 4.25

Reorder the terms:
-4.25 + 4.25 + -1.5x + x2 = 0 + 4.25

Combine like terms: -4.25 + 4.25 = 0.00
0.00 + -1.5x + x2 = 0 + 4.25
-1.5x + x2 = 0 + 4.25

Combine like terms: 0 + 4.25 = 4.25
-1.5x + x2 = 4.25

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 4.25 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 4.25 + 0.5625

Combine like terms: 4.25 + 0.5625 = 4.8125
0.5625 + -1.5x + x2 = 4.8125

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 4.8125

Calculate the square root of the right side: 2.193741097

Break this problem into two subproblems by setting 
(x + -0.75) equal to 2.193741097 and -2.193741097.

Subproblem 1

x + -0.75 = 2.193741097 Simplifying x + -0.75 = 2.193741097 Reorder the terms: -0.75 + x = 2.193741097 Solving -0.75 + x = 2.193741097 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 2.193741097 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 2.193741097 + 0.75 x = 2.193741097 + 0.75 Combine like terms: 2.193741097 + 0.75 = 2.943741097 x = 2.943741097 Simplifying x = 2.943741097

Subproblem 2

x + -0.75 = -2.193741097 Simplifying x + -0.75 = -2.193741097 Reorder the terms: -0.75 + x = -2.193741097 Solving -0.75 + x = -2.193741097 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -2.193741097 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -2.193741097 + 0.75 x = -2.193741097 + 0.75 Combine like terms: -2.193741097 + 0.75 = -1.443741097 x = -1.443741097 Simplifying x = -1.443741097

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.943741097, -1.443741097}

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