(4a-7b)3ab=

Solution for (4a-7b)3ab= equation:

Simplifying
(4a + -7b) * 3ab = 0

Reorder the terms for easier multiplication:
3ab(4a + -7b) = 0
(4a * 3ab + -7b * 3ab) = 0

Reorder the terms:
(-21ab2 + 12a2b) = 0
(-21ab2 + 12a2b) = 0

Solving
-21ab2 + 12a2b = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '3ab'.
3ab(-7b + 4a) = 0

Ignore the factor 3.
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 '(-7b + 4a)' equal to zero and attempt to solve:

Simplifying
-7b + 4a = 0

Reorder the terms:
4a + -7b = 0

Solving
4a + -7b = 0

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

Add '7b' to each side of the equation.
4a + -7b + 7b = 0 + 7b

Combine like terms: -7b + 7b = 0
4a + 0 = 0 + 7b
4a = 0 + 7b
Remove the zero:
4a = 7b

Divide each side by '4'.
a = 1.75b

Simplifying
a = 1.75b
Solution
a = {1.75b}