Wyprowadz wzór na różnice kwadratów i kwadrat różnicy.
(x+½)(x-½)=
(2x-√3)(2x+√3)=
x^2-(1/2)^2=x^2-1/4
(2x)^2-()^2=4x^2-3
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x^2-(1/2)^2=x^2-1/4
(2x)^2-()^2=4x^2-3