June 2022 1 3 Report
Oblicz nierówności, deltę i zaznac zmiejsca zerowe.
[tex]x^{2} -9\geq 0\\[/tex]
[tex]3x^{2} +14x-5\geq 0\\\\[/tex]
[tex]-9x^{2} +2x-\frac{1}{9} \ \textless \ 0[/tex]
[tex]3x^{2} +1\ \textless \ 0\\[/tex]
[tex]x(x-5)\ \textless \ 2x(x-1)[/tex]

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