3x-6+x^2=24x

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Solution for 3x-6+x^2=24x equation:


Simplifying
3x + -6 + x2 = 24x

Reorder the terms:
-6 + 3x + x2 = 24x

Solving
-6 + 3x + x2 = 24x

Solving for variable 'x'.

Reorder the terms:
-6 + 3x + -24x + x2 = 24x + -24x

Combine like terms: 3x + -24x = -21x
-6 + -21x + x2 = 24x + -24x

Combine like terms: 24x + -24x = 0
-6 + -21x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -21x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -21x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -21x + x2 = 0 + 6
-21x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-21x + x2 = 6

The x term is -21x.  Take half its coefficient (-10.5).
Square it (110.25) and add it to both sides.

Add '110.25' to each side of the equation.
-21x + 110.25 + x2 = 6 + 110.25

Reorder the terms:
110.25 + -21x + x2 = 6 + 110.25

Combine like terms: 6 + 110.25 = 116.25
110.25 + -21x + x2 = 116.25

Factor a perfect square on the left side:
(x + -10.5)(x + -10.5) = 116.25

Calculate the square root of the right side: 10.781929326

Break this problem into two subproblems by setting 
(x + -10.5) equal to 10.781929326 and -10.781929326.

Subproblem 1

x + -10.5 = 10.781929326 Simplifying x + -10.5 = 10.781929326 Reorder the terms: -10.5 + x = 10.781929326 Solving -10.5 + x = 10.781929326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.5' to each side of the equation. -10.5 + 10.5 + x = 10.781929326 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + x = 10.781929326 + 10.5 x = 10.781929326 + 10.5 Combine like terms: 10.781929326 + 10.5 = 21.281929326 x = 21.281929326 Simplifying x = 21.281929326

Subproblem 2

x + -10.5 = -10.781929326 Simplifying x + -10.5 = -10.781929326 Reorder the terms: -10.5 + x = -10.781929326 Solving -10.5 + x = -10.781929326 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10.5' to each side of the equation. -10.5 + 10.5 + x = -10.781929326 + 10.5 Combine like terms: -10.5 + 10.5 = 0.0 0.0 + x = -10.781929326 + 10.5 x = -10.781929326 + 10.5 Combine like terms: -10.781929326 + 10.5 = -0.281929326 x = -0.281929326 Simplifying x = -0.281929326

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.281929326, -0.281929326}

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