24r^2-20r-4=0

Solution for 24r^2-20r-4=0 equation:

Simplifying
24r2 + -20r + -4 = 0

Reorder the terms:
-4 + -20r + 24r2 = 0

Solving
-4 + -20r + 24r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -5r + 6r2) = 0

Factor a trinomial.
4((-1 + -6r)(1 + -1r)) = 0

Ignore the factor 4.
Subproblem 1
Set the factor '(-1 + -6r)' equal to zero and attempt to solve:

Simplifying
-1 + -6r = 0

Solving
-1 + -6r = 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 + -6r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -6r = 0 + 1
-6r = 0 + 1

Combine like terms: 0 + 1 = 1
-6r = 1

Divide each side by '-6'.
r = -0.1666666667

Simplifying
r = -0.1666666667
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 = {-0.1666666667, 1}