6r^2=15+27r

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Solution for 6r^2=15+27r equation:


Simplifying
6r2 = 15 + 27r

Solving
6r2 = 15 + 27r

Solving for variable 'r'.

Reorder the terms:
-15 + -27r + 6r2 = 15 + 27r + -15 + -27r

Reorder the terms:
-15 + -27r + 6r2 = 15 + -15 + 27r + -27r

Combine like terms: 15 + -15 = 0
-15 + -27r + 6r2 = 0 + 27r + -27r
-15 + -27r + 6r2 = 27r + -27r

Combine like terms: 27r + -27r = 0
-15 + -27r + 6r2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-5 + -9r + 2r2) = 0

Factor a trinomial.
3((-1 + -2r)(5 + -1r)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-1 + -2r)' equal to zero and attempt to solve: Simplifying -1 + -2r = 0 Solving -1 + -2r = 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 + -2r = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2r = 0 + 1 -2r = 0 + 1 Combine like terms: 0 + 1 = 1 -2r = 1 Divide each side by '-2'. r = -0.5 Simplifying r = -0.5

Subproblem 2

Set the factor '(5 + -1r)' equal to zero and attempt to solve: Simplifying 5 + -1r = 0 Solving 5 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1r = 0 + -5 -1r = 0 + -5 Combine like terms: 0 + -5 = -5 -1r = -5 Divide each side by '-1'. r = 5 Simplifying r = 5

Solution

r = {-0.5, 5}

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