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

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


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

Reorder the terms:
(a + -5b)(-4 + a + 2b) = 0

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

Reorder the terms:
((-4a + 2ab + a2) + -5b * (-4 + a + 2b)) = 0
((-4a + 2ab + a2) + -5b * (-4 + a + 2b)) = 0
(-4a + 2ab + a2 + (-4 * -5b + a * -5b + 2b * -5b)) = 0

Reorder the terms:
(-4a + 2ab + a2 + (-5ab + 20b + -10b2)) = 0
(-4a + 2ab + a2 + (-5ab + 20b + -10b2)) = 0

Reorder the terms:
(-4a + 2ab + -5ab + a2 + 20b + -10b2) = 0

Combine like terms: 2ab + -5ab = -3ab
(-4a + -3ab + a2 + 20b + -10b2) = 0

Solving
-4a + -3ab + a2 + 20b + -10b2 = 0

Solving for variable 'a'.

The solution to this equation could not be determined.

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