3r^2-8r-24r+64=0

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Solution for 3r^2-8r-24r+64=0 equation:


Simplifying
3r2 + -8r + -24r + 64 = 0

Reorder the terms:
64 + -8r + -24r + 3r2 = 0

Combine like terms: -8r + -24r = -32r
64 + -32r + 3r2 = 0

Solving
64 + -32r + 3r2 = 0

Solving for variable 'r'.

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

Subproblem 1

Set the factor '(8 + -3r)' equal to zero and attempt to solve: Simplifying 8 + -3r = 0 Solving 8 + -3r = 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 + -3r = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -3r = 0 + -8 -3r = 0 + -8 Combine like terms: 0 + -8 = -8 -3r = -8 Divide each side by '-3'. r = 2.666666667 Simplifying r = 2.666666667

Subproblem 2

Set the factor '(8 + -1r)' equal to zero and attempt to solve: Simplifying 8 + -1r = 0 Solving 8 + -1r = 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 + -1r = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1r = 0 + -8 -1r = 0 + -8 Combine like terms: 0 + -8 = -8 -1r = -8 Divide each side by '-1'. r = 8 Simplifying r = 8

Solution

r = {2.666666667, 8}

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