r*r*r*r*r*r-9*r*r*r+8=0

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Solution for r*r*r*r*r*r-9*r*r*r+8=0 equation: 


Simplifying
r * r * r * r * r * r + -9r * r * r + 8 = 0

Multiply r * r
r2 * r * r * r * r + -9r * r * r + 8 = 0

Multiply r2 * r
r3 * r * r * r + -9r * r * r + 8 = 0

Multiply r3 * r
r4 * r * r + -9r * r * r + 8 = 0

Multiply r4 * r
r5 * r + -9r * r * r + 8 = 0

Multiply r5 * r
r6 + -9r * r * r + 8 = 0

Multiply r * r
r6 + -9r2 * r + 8 = 0

Multiply r2 * r
r6 + -9r3 + 8 = 0

Reorder the terms:
8 + -9r3 + r6 = 0

Solving
8 + -9r3 + r6 = 0

Solving for variable 'r'.

Factor a trinomial.
(1 + -1r3)(8 + -1r3) = 0


Subproblem 1
Set the factor '(1 + -1r3)' equal to zero and attempt to solve:

Simplifying
1 + -1r3 = 0

Solving
1 + -1r3 = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1r3 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1r3 = 0 + -1
-1r3 = 0 + -1

Combine like terms: 0 + -1 = -1
-1r3 = -1

Divide each side by '-1'.
r3 = 1

Simplifying
r3 = 1

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 + -1r3)' equal to zero and attempt to solve:

Simplifying
8 + -1r3 = 0

Solving
8 + -1r3 = 0

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

Add '-8' to each side of the equation.
8 + -8 + -1r3 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -1r3 = 0 + -8
-1r3 = 0 + -8

Combine like terms: 0 + -8 = -8
-1r3 = -8

Divide each side by '-1'.
r3 = 8

Simplifying
r3 = 8

The solution to this equation could not be determined.

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

The solution to this equation could not be determined.

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