22r^2-63r+20=

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Solution for 22r^2-63r+20= equation:


Simplifying
22r2 + -63r + 20 = 0

Reorder the terms:
20 + -63r + 22r2 = 0

Solving
20 + -63r + 22r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(4 + -11r)(5 + -2r) = 0

Subproblem 1

Set the factor '(4 + -11r)' equal to zero and attempt to solve: Simplifying 4 + -11r = 0 Solving 4 + -11r = 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 + -11r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -11r = 0 + -4 -11r = 0 + -4 Combine like terms: 0 + -4 = -4 -11r = -4 Divide each side by '-11'. r = 0.3636363636 Simplifying r = 0.3636363636

Subproblem 2

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

Solution

r = {0.3636363636, 2.5}

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