=6r^2-23r+20

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Solution for =6r^2-23r+20 equation:


Simplifying
0 = 6r2 + -23r + 20

Reorder the terms:
0 = 20 + -23r + 6r2

Solving
0 = 20 + -23r + 6r2

Solving for variable 'r'.

Combine like terms: 0 + -20 = -20
-20 + 23r + -6r2 = 20 + -23r + 6r2 + -20 + 23r + -6r2

Reorder the terms:
-20 + 23r + -6r2 = 20 + -20 + -23r + 23r + 6r2 + -6r2

Combine like terms: 20 + -20 = 0
-20 + 23r + -6r2 = 0 + -23r + 23r + 6r2 + -6r2
-20 + 23r + -6r2 = -23r + 23r + 6r2 + -6r2

Combine like terms: -23r + 23r = 0
-20 + 23r + -6r2 = 0 + 6r2 + -6r2
-20 + 23r + -6r2 = 6r2 + -6r2

Combine like terms: 6r2 + -6r2 = 0
-20 + 23r + -6r2 = 0

Factor a trinomial.
(-5 + 2r)(4 + -3r) = 0

Subproblem 1

Set the factor '(-5 + 2r)' equal to zero and attempt to solve: Simplifying -5 + 2r = 0 Solving -5 + 2r = 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 + 2r = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 2r = 0 + 5 2r = 0 + 5 Combine like terms: 0 + 5 = 5 2r = 5 Divide each side by '2'. r = 2.5 Simplifying r = 2.5

Subproblem 2

Set the factor '(4 + -3r)' equal to zero and attempt to solve: Simplifying 4 + -3r = 0 Solving 4 + -3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3r = 0 + -4 -3r = 0 + -4 Combine like terms: 0 + -4 = -4 -3r = -4 Divide each side by '-3'. r = 1.333333333 Simplifying r = 1.333333333

Solution

r = {2.5, 1.333333333}

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