-5r^3(4r^2-2r-5)=product

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Solution for -5r^3(4r^2-2r-5)=product equation: 


Simplifying
-5r3(4r2 + -2r + -5) = product

Reorder the terms:
-5r3(-5 + -2r + 4r2) = product
(-5 * -5r3 + -2r * -5r3 + 4r2 * -5r3) = product
(25r3 + 10r4 + -20r5) = product

Solving
25r3 + 10r4 + -20r5 = cdoprtu

Solving for variable 'r'.

Reorder the terms:
-1cdoprtu + 25r3 + 10r4 + -20r5 = cdoprtu + -1cdoprtu

Combine like terms: cdoprtu + -1cdoprtu = 0
-1cdoprtu + 25r3 + 10r4 + -20r5 = 0

Factor out the Greatest Common Factor (GCF), 'r'.
r(-1cdoptu + 25r2 + 10r3 + -20r4) = 0


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

Simplifying
r = 0

Solving
r = 0

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

Simplifying
r = 0

Subproblem 2
Set the factor '(-1cdoptu + 25r2 + 10r3 + -20r4)' equal to zero and attempt to solve:

Simplifying
-1cdoptu + 25r2 + 10r3 + -20r4 = 0

Solving
-1cdoptu + 25r2 + 10r3 + -20r4 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
r = {0}

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