-4x^2-17x+384=0

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Solution for -4x^2-17x+384=0 equation:


Simplifying
-4x2 + -17x + 384 = 0

Reorder the terms:
384 + -17x + -4x2 = 0

Solving
384 + -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'.
-96 + 4.25x + x2 = 0

Move the constant term to the right:

Add '96' to each side of the equation.
-96 + 4.25x + 96 + x2 = 0 + 96

Reorder the terms:
-96 + 96 + 4.25x + x2 = 0 + 96

Combine like terms: -96 + 96 = 0
0 + 4.25x + x2 = 0 + 96
4.25x + x2 = 0 + 96

Combine like terms: 0 + 96 = 96
4.25x + x2 = 96

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 = 96 + 4.515625

Reorder the terms:
4.515625 + 4.25x + x2 = 96 + 4.515625

Combine like terms: 96 + 4.515625 = 100.515625
4.515625 + 4.25x + x2 = 100.515625

Factor a perfect square on the left side:
(x + 2.125)(x + 2.125) = 100.515625

Calculate the square root of the right side: 10.025748102

Break this problem into two subproblems by setting 
(x + 2.125) equal to 10.025748102 and -10.025748102.

Subproblem 1

x + 2.125 = 10.025748102 Simplifying x + 2.125 = 10.025748102 Reorder the terms: 2.125 + x = 10.025748102 Solving 2.125 + x = 10.025748102 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 = 10.025748102 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = 10.025748102 + -2.125 x = 10.025748102 + -2.125 Combine like terms: 10.025748102 + -2.125 = 7.900748102 x = 7.900748102 Simplifying x = 7.900748102

Subproblem 2

x + 2.125 = -10.025748102 Simplifying x + 2.125 = -10.025748102 Reorder the terms: 2.125 + x = -10.025748102 Solving 2.125 + x = -10.025748102 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 = -10.025748102 + -2.125 Combine like terms: 2.125 + -2.125 = 0.000 0.000 + x = -10.025748102 + -2.125 x = -10.025748102 + -2.125 Combine like terms: -10.025748102 + -2.125 = -12.150748102 x = -12.150748102 Simplifying x = -12.150748102

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.900748102, -12.150748102}

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