4x^2-11x-24=0

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Solution for 4x^2-11x-24=0 equation:


Simplifying
4x2 + -11x + -24 = 0

Reorder the terms:
-24 + -11x + 4x2 = 0

Solving
-24 + -11x + 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'.
-6 + -2.75x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -2.75x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -2.75x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -2.75x + x2 = 0 + 6
-2.75x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-2.75x + x2 = 6

The x term is -2.75x.  Take half its coefficient (-1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
-2.75x + 1.890625 + x2 = 6 + 1.890625

Reorder the terms:
1.890625 + -2.75x + x2 = 6 + 1.890625

Combine like terms: 6 + 1.890625 = 7.890625
1.890625 + -2.75x + x2 = 7.890625

Factor a perfect square on the left side:
(x + -1.375)(x + -1.375) = 7.890625

Calculate the square root of the right side: 2.809025632

Break this problem into two subproblems by setting 
(x + -1.375) equal to 2.809025632 and -2.809025632.

Subproblem 1

x + -1.375 = 2.809025632 Simplifying x + -1.375 = 2.809025632 Reorder the terms: -1.375 + x = 2.809025632 Solving -1.375 + x = 2.809025632 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = 2.809025632 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = 2.809025632 + 1.375 x = 2.809025632 + 1.375 Combine like terms: 2.809025632 + 1.375 = 4.184025632 x = 4.184025632 Simplifying x = 4.184025632

Subproblem 2

x + -1.375 = -2.809025632 Simplifying x + -1.375 = -2.809025632 Reorder the terms: -1.375 + x = -2.809025632 Solving -1.375 + x = -2.809025632 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = -2.809025632 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = -2.809025632 + 1.375 x = -2.809025632 + 1.375 Combine like terms: -2.809025632 + 1.375 = -1.434025632 x = -1.434025632 Simplifying x = -1.434025632

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.184025632, -1.434025632}

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