9a*9a+3a-6a*6a-4a=

Solution for 9a*9a+3a-6a*6a-4a= equation:

Simplifying
9a * 9a + 3a + -6a * 6a + -4a = 0

Reorder the terms for easier multiplication:
9 * 9a * a + 3a + -6a * 6a + -4a = 0

Multiply 9 * 9
81a * a + 3a + -6a * 6a + -4a = 0

Multiply a * a
81a2 + 3a + -6a * 6a + -4a = 0

Reorder the terms for easier multiplication:
81a2 + 3a + -6 * 6a * a + -4a = 0

Multiply -6 * 6
81a2 + 3a + -36a * a + -4a = 0

Multiply a * a
81a2 + 3a + -36a2 + -4a = 0

Reorder the terms:
3a + -4a + 81a2 + -36a2 = 0

Combine like terms: 3a + -4a = -1a
-1a + 81a2 + -36a2 = 0

Combine like terms: 81a2 + -36a2 = 45a2
-1a + 45a2 = 0

Solving
-1a + 45a2 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), 'a'.
a(-1 + 45a) = 0

Subproblem 1
Set the factor 'a' equal to zero and attempt to solve:

Simplifying
a = 0

Solving
a = 0

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

Simplifying
a = 0
Subproblem 2
Set the factor '(-1 + 45a)' equal to zero and attempt to solve:

Simplifying
-1 + 45a = 0

Solving
-1 + 45a = 0

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

Add '1' to each side of the equation.
-1 + 1 + 45a = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 45a = 0 + 1
45a = 0 + 1

Combine like terms: 0 + 1 = 1
45a = 1

Divide each side by '45'.
a = 0.02222222222

Simplifying
a = 0.02222222222
Solution
a = {0, 0.02222222222}