9x^6-42x^5-24x^4=

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Solution for 9x^6-42x^5-24x^4= equation: 


Simplifying
9x6 + -42x5 + -24x4 = 0

Reorder the terms:
-24x4 + -42x5 + 9x6 = 0

Solving
-24x4 + -42x5 + 9x6 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x4'.
3x4(-8 + -14x + 3x2) = 0

Ignore the factor 3.

Subproblem 1
Set the factor 'x4' equal to zero and attempt to solve:

Simplifying
x4 = 0

Solving
x4 = 0

Move all terms containing x to the left, all other terms to the right.

Simplifying
x4 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

Subproblem 2
Set the factor '(-8 + -14x + 3x2)' equal to zero and attempt to solve:

Simplifying
-8 + -14x + 3x2 = 0

Solving
-8 + -14x + 3x2 = 0

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

Divide each side by '3'.
-2.666666667 + -4.666666667x + x2 = 0

Move the constant term to the right:

Add '2.666666667' to each side of the equation.
-2.666666667 + -4.666666667x + 2.666666667 + x2 = 0 + 2.666666667

Reorder the terms:
-2.666666667 + 2.666666667 + -4.666666667x + x2 = 0 + 2.666666667

Combine like terms: -2.666666667 + 2.666666667 = 0.000000000
0.000000000 + -4.666666667x + x2 = 0 + 2.666666667
-4.666666667x + x2 = 0 + 2.666666667

Combine like terms: 0 + 2.666666667 = 2.666666667
-4.666666667x + x2 = 2.666666667

The x term is -4.666666667x.  Take half its coefficient (-2.333333334).
Square it (5.444444448) and add it to both sides.

Add '5.444444448' to each side of the equation.
-4.666666667x + 5.444444448 + x2 = 2.666666667 + 5.444444448

Reorder the terms:
5.444444448 + -4.666666667x + x2 = 2.666666667 + 5.444444448

Combine like terms: 2.666666667 + 5.444444448 = 8.111111115
5.444444448 + -4.666666667x + x2 = 8.111111115

Factor a perfect square on the left side:
(x + -2.333333334)(x + -2.333333334) = 8.111111115

Calculate the square root of the right side: 2.848001249

Break this problem into two subproblems by setting 
(x + -2.333333334) equal to 2.848001249 and -2.848001249.


Subproblem 1
x + -2.333333334 = 2.848001249

Simplifying
x + -2.333333334 = 2.848001249

Reorder the terms:
-2.333333334 + x = 2.848001249

Solving
-2.333333334 + x = 2.848001249

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '2.333333334' to each side of the equation.
-2.333333334 + 2.333333334 + x = 2.848001249 + 2.333333334

Combine like terms: -2.333333334 + 2.333333334 = 0.000000000
0.000000000 + x = 2.848001249 + 2.333333334
x = 2.848001249 + 2.333333334

Combine like terms: 2.848001249 + 2.333333334 = 5.181334583
x = 5.181334583

Simplifying
x = 5.181334583


Subproblem 2
x + -2.333333334 = -2.848001249

Simplifying
x + -2.333333334 = -2.848001249

Reorder the terms:
-2.333333334 + x = -2.848001249

Solving
-2.333333334 + x = -2.848001249

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '2.333333334' to each side of the equation.
-2.333333334 + 2.333333334 + x = -2.848001249 + 2.333333334

Combine like terms: -2.333333334 + 2.333333334 = 0.000000000
0.000000000 + x = -2.848001249 + 2.333333334
x = -2.848001249 + 2.333333334

Combine like terms: -2.848001249 + 2.333333334 = -0.514667915
x = -0.514667915

Simplifying
x = -0.514667915


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {5.181334583, -0.514667915}
Solution
x = {5.181334583, -0.514667915}

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