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0=32x^2+96x+72
We move all terms to the left:
0-(32x^2+96x+72)=0
We add all the numbers together, and all the variables
-(32x^2+96x+72)=0
We get rid of parentheses
-32x^2-96x-72=0
a = -32; b = -96; c = -72;
Δ = b2-4ac
Δ = -962-4·(-32)·(-72)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{96}{-64}=-1+1/2$
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