(2a-3)^2-9(2a-3)=20

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Solution for (2a-3)^2-9(2a-3)=20 equation: 



(2a-3)^2-9(2a-3)=20

We move all terms to the left:

(2a-3)^2-9(2a-3)-(20)=0

We multiply parentheses

(2a-3)^2-18a+27-20=0

We add all the numbers together, and all the variables

-18a+(2a-3)^2+7=0

We move all terms containing a to the left, all other terms to the right

-18a+(2a-3)^2=-7

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