8r^2+15=29r

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Solution for 8r^2+15=29r equation:


Simplifying
8r2 + 15 = 29r

Reorder the terms:
15 + 8r2 = 29r

Solving
15 + 8r2 = 29r

Solving for variable 'r'.

Reorder the terms:
15 + -29r + 8r2 = 29r + -29r

Combine like terms: 29r + -29r = 0
15 + -29r + 8r2 = 0

Factor a trinomial.
(5 + -8r)(3 + -1r) = 0

Subproblem 1

Set the factor '(5 + -8r)' equal to zero and attempt to solve: Simplifying 5 + -8r = 0 Solving 5 + -8r = 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 + -8r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -8r = 0 + -5 -8r = 0 + -5 Combine like terms: 0 + -5 = -5 -8r = -5 Divide each side by '-8'. r = 0.625 Simplifying r = 0.625

Subproblem 2

Set the factor '(3 + -1r)' equal to zero and attempt to solve: Simplifying 3 + -1r = 0 Solving 3 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1r = 0 + -3 -1r = 0 + -3 Combine like terms: 0 + -3 = -3 -1r = -3 Divide each side by '-1'. r = 3 Simplifying r = 3

Solution

r = {0.625, 3}

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