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625+x2=50x
We move all terms to the left:
625+x2-(50x)=0
We add all the numbers together, and all the variables
x^2-50x+625=0
a = 1; b = -50; c = +625;
Δ = b2-4ac
Δ = -502-4·1·625
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{50}{2}=25$
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