4x^2-23x-2=0

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Solution for 4x^2-23x-2=0 equation:


Simplifying
4x2 + -23x + -2 = 0

Reorder the terms:
-2 + -23x + 4x2 = 0

Solving
-2 + -23x + 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'.
-0.5 + -5.75x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -5.75x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -5.75x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -5.75x + x2 = 0 + 0.5
-5.75x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-5.75x + x2 = 0.5

The x term is -5.75x.  Take half its coefficient (-2.875).
Square it (8.265625) and add it to both sides.

Add '8.265625' to each side of the equation.
-5.75x + 8.265625 + x2 = 0.5 + 8.265625

Reorder the terms:
8.265625 + -5.75x + x2 = 0.5 + 8.265625

Combine like terms: 0.5 + 8.265625 = 8.765625
8.265625 + -5.75x + x2 = 8.765625

Factor a perfect square on the left side:
(x + -2.875)(x + -2.875) = 8.765625

Calculate the square root of the right side: 2.960679821

Break this problem into two subproblems by setting 
(x + -2.875) equal to 2.960679821 and -2.960679821.

Subproblem 1

x + -2.875 = 2.960679821 Simplifying x + -2.875 = 2.960679821 Reorder the terms: -2.875 + x = 2.960679821 Solving -2.875 + x = 2.960679821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = 2.960679821 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = 2.960679821 + 2.875 x = 2.960679821 + 2.875 Combine like terms: 2.960679821 + 2.875 = 5.835679821 x = 5.835679821 Simplifying x = 5.835679821

Subproblem 2

x + -2.875 = -2.960679821 Simplifying x + -2.875 = -2.960679821 Reorder the terms: -2.875 + x = -2.960679821 Solving -2.875 + x = -2.960679821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.875' to each side of the equation. -2.875 + 2.875 + x = -2.960679821 + 2.875 Combine like terms: -2.875 + 2.875 = 0.000 0.000 + x = -2.960679821 + 2.875 x = -2.960679821 + 2.875 Combine like terms: -2.960679821 + 2.875 = -0.085679821 x = -0.085679821 Simplifying x = -0.085679821

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.835679821, -0.085679821}

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