-4ab(5a-9b-8)=

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Solution for -4ab(5a-9b-8)= equation: 


Simplifying
-4ab(5a + -9b + -8) = 0

Reorder the terms:
-4ab(-8 + 5a + -9b) = 0
(-8 * -4ab + 5a * -4ab + -9b * -4ab) = 0

Reorder the terms:
(32ab + 36ab2 + -20a2b) = 0
(32ab + 36ab2 + -20a2b) = 0

Solving
32ab + 36ab2 + -20a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '4ab'.
4ab(8 + 9b + -5a) = 0

Ignore the factor 4.

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

Simplifying
ab = 0

Solving
ab = 0

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

Simplifying
ab = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

Subproblem 2
Set the factor '(8 + 9b + -5a)' equal to zero and attempt to solve:

Simplifying
8 + 9b + -5a = 0

Reorder the terms:
8 + -5a + 9b = 0

Solving
8 + -5a + 9b = 0

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

Add '-8' to each side of the equation.
8 + -5a + -8 + 9b = 0 + -8

Reorder the terms:
8 + -8 + -5a + 9b = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -5a + 9b = 0 + -8
-5a + 9b = 0 + -8

Combine like terms: 0 + -8 = -8
-5a + 9b = -8

Add '-9b' to each side of the equation.
-5a + 9b + -9b = -8 + -9b

Combine like terms: 9b + -9b = 0
-5a + 0 = -8 + -9b
-5a = -8 + -9b

Divide each side by '-5'.
a = 1.6 + 1.8b

Simplifying
a = 1.6 + 1.8b
Solution
a = {1.6 + 1.8b}

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