(4a-5b)(3a-2b)=

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Solution for (4a-5b)(3a-2b)= equation: 


Simplifying
(4a + -5b)(3a + -2b) = 0

Multiply (4a + -5b) * (3a + -2b)
(4a * (3a + -2b) + -5b * (3a + -2b)) = 0
((3a * 4a + -2b * 4a) + -5b * (3a + -2b)) = 0

Reorder the terms:
((-8ab + 12a2) + -5b * (3a + -2b)) = 0
((-8ab + 12a2) + -5b * (3a + -2b)) = 0
(-8ab + 12a2 + (3a * -5b + -2b * -5b)) = 0
(-8ab + 12a2 + (-15ab + 10b2)) = 0

Reorder the terms:
(-8ab + -15ab + 12a2 + 10b2) = 0

Combine like terms: -8ab + -15ab = -23ab
(-23ab + 12a2 + 10b2) = 0

Solving
-23ab + 12a2 + 10b2 = 0

Solving for variable 'a'.

Factor a trinomial.
(4a + -5b)(3a + -2b) = 0


Subproblem 1
Set the factor '(4a + -5b)' equal to zero and attempt to solve:

Simplifying
4a + -5b = 0

Solving
4a + -5b = 0

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

Add '5b' to each side of the equation.
4a + -5b + 5b = 0 + 5b

Combine like terms: -5b + 5b = 0
4a + 0 = 0 + 5b
4a = 0 + 5b
Remove the zero:
4a = 5b

Divide each side by '4'.
a = 1.25b

Simplifying
a = 1.25b

Subproblem 2
Set the factor '(3a + -2b)' equal to zero and attempt to solve:

Simplifying
3a + -2b = 0

Solving
3a + -2b = 0

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

Add '2b' to each side of the equation.
3a + -2b + 2b = 0 + 2b

Combine like terms: -2b + 2b = 0
3a + 0 = 0 + 2b
3a = 0 + 2b
Remove the zero:
3a = 2b

Divide each side by '3'.
a = 0.6666666667b

Simplifying
a = 0.6666666667b
Solution
a = {1.25b, 0.6666666667b}

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