9r^2+30r+25=

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Solution for 9r^2+30r+25= equation:


Simplifying
9r2 + 30r + 25 = 0

Reorder the terms:
25 + 30r + 9r2 = 0

Solving
25 + 30r + 9r2 = 0

Solving for variable 'r'.

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

Subproblem 1

Set the factor '(5 + 3r)' equal to zero and attempt to solve: Simplifying 5 + 3r = 0 Solving 5 + 3r = 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 + 3r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3r = 0 + -5 3r = 0 + -5 Combine like terms: 0 + -5 = -5 3r = -5 Divide each side by '3'. r = -1.666666667 Simplifying r = -1.666666667

Subproblem 2

Set the factor '(5 + 3r)' equal to zero and attempt to solve: Simplifying 5 + 3r = 0 Solving 5 + 3r = 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 + 3r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 3r = 0 + -5 3r = 0 + -5 Combine like terms: 0 + -5 = -5 3r = -5 Divide each side by '3'. r = -1.666666667 Simplifying r = -1.666666667

Solution

r = {-1.666666667, -1.666666667}

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