2r^2+3=5r

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


Simplifying
2r2 + 3 = 5r

Reorder the terms:
3 + 2r2 = 5r

Solving
3 + 2r2 = 5r

Solving for variable 'r'.

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

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

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

Subproblem 1

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

Subproblem 2

Set the factor '(3 + -2r)' equal to zero and attempt to solve: Simplifying 3 + -2r = 0 Solving 3 + -2r = 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 + -2r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2r = 0 + -3 -2r = 0 + -3 Combine like terms: 0 + -3 = -3 -2r = -3 Divide each side by '-2'. r = 1.5 Simplifying r = 1.5

Solution

r = {1, 1.5}

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