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2x^2-300x+11250=0
a = 2; b = -300; c = +11250;
Δ = b2-4ac
Δ = -3002-4·2·11250
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{300}{4}=75$
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