a(3a+6)=9(2a-4)

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Solution for a(3a+6)=9(2a-4) equation: 



a(3a+6)=9(2a-4)

We move all terms to the left:

a(3a+6)-(9(2a-4))=0

We multiply parentheses

3a^2+6a-(9(2a-4))=0



We calculate terms in parentheses: -(9(2a-4)), so:

9(2a-4)

We multiply parentheses

18a-36

Back to the equation:

-(18a-36)



We get rid of parentheses

3a^2+6a-18a+36=0

We add all the numbers together, and all the variables

3a^2-12a+36=0

a = 3; b = -12; c = +36;
Δ = b2-4ac
Δ = -122-4·3·36
Δ = -288
Delta is less than zero, so there is no solution for the equation

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