A=12m*72m

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Solution for A=12m*72m equation: 



=12A*72A

We move all terms to the left:

-(12A*72A)=0

We add all the numbers together, and all the variables

-(+12A*72A)=0

We get rid of parentheses

-12A*72A=0

Wy multiply elements

-864A^2=0

a = -864; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-864)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$A=\frac{-b}{2a}=\frac{0}{-1728}=0$

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