0=-4x^2+24x-23

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Solution for 0=-4x^2+24x-23 equation:


Simplifying
0 = -4x2 + 24x + -23

Reorder the terms:
0 = -23 + 24x + -4x2

Solving
0 = -23 + 24x + -4x2

Solving for variable 'x'.

Combine like terms: 0 + 23 = 23
23 + -24x + 4x2 = -23 + 24x + -4x2 + 23 + -24x + 4x2

Reorder the terms:
23 + -24x + 4x2 = -23 + 23 + 24x + -24x + -4x2 + 4x2

Combine like terms: -23 + 23 = 0
23 + -24x + 4x2 = 0 + 24x + -24x + -4x2 + 4x2
23 + -24x + 4x2 = 24x + -24x + -4x2 + 4x2

Combine like terms: 24x + -24x = 0
23 + -24x + 4x2 = 0 + -4x2 + 4x2
23 + -24x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
23 + -24x + 4x2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
5.75 + -6x + x2 = 0

Move the constant term to the right:

Add '-5.75' to each side of the equation.
5.75 + -6x + -5.75 + x2 = 0 + -5.75

Reorder the terms:
5.75 + -5.75 + -6x + x2 = 0 + -5.75

Combine like terms: 5.75 + -5.75 = 0.00
0.00 + -6x + x2 = 0 + -5.75
-6x + x2 = 0 + -5.75

Combine like terms: 0 + -5.75 = -5.75
-6x + x2 = -5.75

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -5.75 + 9

Reorder the terms:
9 + -6x + x2 = -5.75 + 9

Combine like terms: -5.75 + 9 = 3.25
9 + -6x + x2 = 3.25

Factor a perfect square on the left side:
(x + -3)(x + -3) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(x + -3) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + -3 = 1.802775638 Simplifying x + -3 = 1.802775638 Reorder the terms: -3 + x = 1.802775638 Solving -3 + x = 1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 1.802775638 + 3 Combine like terms: -3 + 3 = 0 0 + x = 1.802775638 + 3 x = 1.802775638 + 3 Combine like terms: 1.802775638 + 3 = 4.802775638 x = 4.802775638 Simplifying x = 4.802775638

Subproblem 2

x + -3 = -1.802775638 Simplifying x + -3 = -1.802775638 Reorder the terms: -3 + x = -1.802775638 Solving -3 + x = -1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = -1.802775638 + 3 Combine like terms: -3 + 3 = 0 0 + x = -1.802775638 + 3 x = -1.802775638 + 3 Combine like terms: -1.802775638 + 3 = 1.197224362 x = 1.197224362 Simplifying x = 1.197224362

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.802775638, 1.197224362}

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