3r^2=5r-2

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Solution for 3r^2=5r-2 equation:


Simplifying
3r2 = 5r + -2

Reorder the terms:
3r2 = -2 + 5r

Solving
3r2 = -2 + 5r

Solving for variable 'r'.

Reorder the terms:
2 + -5r + 3r2 = -2 + 5r + 2 + -5r

Reorder the terms:
2 + -5r + 3r2 = -2 + 2 + 5r + -5r

Combine like terms: -2 + 2 = 0
2 + -5r + 3r2 = 0 + 5r + -5r
2 + -5r + 3r2 = 5r + -5r

Combine like terms: 5r + -5r = 0
2 + -5r + 3r2 = 0

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

Subproblem 1

Set the factor '(2 + -3r)' equal to zero and attempt to solve: Simplifying 2 + -3r = 0 Solving 2 + -3r = 0 Move all terms containing r to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -3r = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -3r = 0 + -2 -3r = 0 + -2 Combine like terms: 0 + -2 = -2 -3r = -2 Divide each side by '-3'. r = 0.6666666667 Simplifying r = 0.6666666667

Subproblem 2

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

Solution

r = {0.6666666667, 1}

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