4x^2-67x-254=0

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Solution for 4x^2-67x-254=0 equation:


Simplifying
4x2 + -67x + -254 = 0

Reorder the terms:
-254 + -67x + 4x2 = 0

Solving
-254 + -67x + 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'.
-63.5 + -16.75x + x2 = 0

Move the constant term to the right:

Add '63.5' to each side of the equation.
-63.5 + -16.75x + 63.5 + x2 = 0 + 63.5

Reorder the terms:
-63.5 + 63.5 + -16.75x + x2 = 0 + 63.5

Combine like terms: -63.5 + 63.5 = 0.0
0.0 + -16.75x + x2 = 0 + 63.5
-16.75x + x2 = 0 + 63.5

Combine like terms: 0 + 63.5 = 63.5
-16.75x + x2 = 63.5

The x term is -16.75x.  Take half its coefficient (-8.375).
Square it (70.140625) and add it to both sides.

Add '70.140625' to each side of the equation.
-16.75x + 70.140625 + x2 = 63.5 + 70.140625

Reorder the terms:
70.140625 + -16.75x + x2 = 63.5 + 70.140625

Combine like terms: 63.5 + 70.140625 = 133.640625
70.140625 + -16.75x + x2 = 133.640625

Factor a perfect square on the left side:
(x + -8.375)(x + -8.375) = 133.640625

Calculate the square root of the right side: 11.560303845

Break this problem into two subproblems by setting 
(x + -8.375) equal to 11.560303845 and -11.560303845.

Subproblem 1

x + -8.375 = 11.560303845 Simplifying x + -8.375 = 11.560303845 Reorder the terms: -8.375 + x = 11.560303845 Solving -8.375 + x = 11.560303845 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.375' to each side of the equation. -8.375 + 8.375 + x = 11.560303845 + 8.375 Combine like terms: -8.375 + 8.375 = 0.000 0.000 + x = 11.560303845 + 8.375 x = 11.560303845 + 8.375 Combine like terms: 11.560303845 + 8.375 = 19.935303845 x = 19.935303845 Simplifying x = 19.935303845

Subproblem 2

x + -8.375 = -11.560303845 Simplifying x + -8.375 = -11.560303845 Reorder the terms: -8.375 + x = -11.560303845 Solving -8.375 + x = -11.560303845 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.375' to each side of the equation. -8.375 + 8.375 + x = -11.560303845 + 8.375 Combine like terms: -8.375 + 8.375 = 0.000 0.000 + x = -11.560303845 + 8.375 x = -11.560303845 + 8.375 Combine like terms: -11.560303845 + 8.375 = -3.185303845 x = -3.185303845 Simplifying x = -3.185303845

Solution

The solution to the problem is based on the solutions from the subproblems. x = {19.935303845, -3.185303845}

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