x^7-5x^6-5x^5=

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Solution for x^7-5x^6-5x^5= equation: 


Simplifying
x7 + -5x6 + -5x5 = 0

Reorder the terms:
-5x5 + -5x6 + x7 = 0

Solving
-5x5 + -5x6 + x7 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), 'x5'.
x5(-5 + -5x + x2) = 0


Subproblem 1
Set the factor 'x5' equal to zero and attempt to solve:

Simplifying
x5 = 0

Solving
x5 = 0

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

Simplifying
x5 = 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 '(-5 + -5x + x2)' equal to zero and attempt to solve:

Simplifying
-5 + -5x + x2 = 0

Solving
-5 + -5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -5x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + -5x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -5x + x2 = 0 + 5
-5x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
-5x + x2 = 5

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 5 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 5 + 6.25

Combine like terms: 5 + 6.25 = 11.25
6.25 + -5x + x2 = 11.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 11.25

Calculate the square root of the right side: 3.354101966

Break this problem into two subproblems by setting 
(x + -2.5) equal to 3.354101966 and -3.354101966.


Subproblem 1
x + -2.5 = 3.354101966

Simplifying
x + -2.5 = 3.354101966

Reorder the terms:
-2.5 + x = 3.354101966

Solving
-2.5 + x = 3.354101966

Solving for variable 'x'.

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

Add '2.5' to each side of the equation.
-2.5 + 2.5 + x = 3.354101966 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + x = 3.354101966 + 2.5
x = 3.354101966 + 2.5

Combine like terms: 3.354101966 + 2.5 = 5.854101966
x = 5.854101966

Simplifying
x = 5.854101966


Subproblem 2
x + -2.5 = -3.354101966

Simplifying
x + -2.5 = -3.354101966

Reorder the terms:
-2.5 + x = -3.354101966

Solving
-2.5 + x = -3.354101966

Solving for variable 'x'.

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

Add '2.5' to each side of the equation.
-2.5 + 2.5 + x = -3.354101966 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + x = -3.354101966 + 2.5
x = -3.354101966 + 2.5

Combine like terms: -3.354101966 + 2.5 = -0.854101966
x = -0.854101966

Simplifying
x = -0.854101966


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {5.854101966, -0.854101966}
Solution
x = {5.854101966, -0.854101966}

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