72r^2+35r+3=

Solution for 72r^2+35r+3= equation:

Simplifying
72r2 + 35r + 3 = 0

Reorder the terms:
3 + 35r + 72r2 = 0

Solving
3 + 35r + 72r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(3 + 8r)(1 + 9r) = 0

Subproblem 1
Set the factor '(3 + 8r)' equal to zero and attempt to solve:

Simplifying
3 + 8r = 0

Solving
3 + 8r = 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 + 8r = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 8r = 0 + -3
8r = 0 + -3

Combine like terms: 0 + -3 = -3
8r = -3

Divide each side by '8'.
r = -0.375

Simplifying
r = -0.375
Subproblem 2
Set the factor '(1 + 9r)' equal to zero and attempt to solve:

Simplifying
1 + 9r = 0

Solving
1 + 9r = 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 + 9r = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 9r = 0 + -1
9r = 0 + -1

Combine like terms: 0 + -1 = -1
9r = -1

Divide each side by '9'.
r = -0.1111111111

Simplifying
r = -0.1111111111
Solution
r = {-0.375, -0.1111111111}