-2t(-9+9t)=

Solution for -2t(-9+9t)= equation:

Simplifying
-2t(-9 + 9t) = 0
(-9 * -2t + 9t * -2t) = 0
(18t + -18t2) = 0

Solving
18t + -18t2 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), '18t'.
18t(1 + -1t) = 0

Ignore the factor 18.
Subproblem 1
Set the factor 't' equal to zero and attempt to solve:

Simplifying
t = 0

Solving
t = 0

Move all terms containing t to the left, all other terms to the right.

Simplifying
t = 0
Subproblem 2
Set the factor '(1 + -1t)' equal to zero and attempt to solve:

Simplifying
1 + -1t = 0

Solving
1 + -1t = 0

Move all terms containing t to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1t = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1t = 0 + -1
-1t = 0 + -1

Combine like terms: 0 + -1 = -1
-1t = -1

Divide each side by '-1'.
t = 1

Simplifying
t = 1
Solution
t = {0, 1}