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x(20x=8x)
We move all terms to the left:
x(20x-(8x))=0
We add all the numbers together, and all the variables
x(+12x)=0
We multiply parentheses
12x^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:$x=\frac{-b}{2a}=\frac{0}{24}=0$
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