8r^2=18r

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Solution for 8r^2=18r equation:


Simplifying
8r2 = 18r

Solving
8r2 = 18r

Solving for variable 'r'.

Reorder the terms:
-18r + 8r2 = 18r + -18r

Combine like terms: 18r + -18r = 0
-18r + 8r2 = 0

Factor out the Greatest Common Factor (GCF), '2r'.
2r(-9 + 4r) = 0

Ignore the factor 2.

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 '(-9 + 4r)' equal to zero and attempt to solve: Simplifying -9 + 4r = 0 Solving -9 + 4r = 0 Move all terms containing r to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 4r = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 4r = 0 + 9 4r = 0 + 9 Combine like terms: 0 + 9 = 9 4r = 9 Divide each side by '4'. r = 2.25 Simplifying r = 2.25

Solution

r = {0, 2.25}

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