6a(5-3a)=30a-6a^2

Solution for 6a(5-3a)=30a-6a^2 equation:

6a(5-3a)=30a-6a^2

We move all terms to the left:

6a(5-3a)-(30a-6a^2)=0

We add all the numbers together, and all the variables

-(30a-6a^2)+6a(-3a+5)=0

We multiply parentheses

-(30a-6a^2)-18a^2+30a=0

We get rid of parentheses

6a^2-18a^2-30a+30a=0

We add all the numbers together, and all the variables

-12a^2=0

a = -12; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-12)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$a=\frac{-b}{2a}=\frac{0}{-24}=0$