[tex]rumus \: optimum \: \frac{d}{ - 4a} \\ d = {b}^{2} - 4ac[/tex]
[tex] \frac{ {20}^{2} - 4 \times 2 \times 0}{ - 4 \times 2} = \frac{400}{ - 8} = - 50[/tex]
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[tex]rumus \: optimum \: \frac{d}{ - 4a} \\ d = {b}^{2} - 4ac[/tex]
[tex] \frac{ {20}^{2} - 4 \times 2 \times 0}{ - 4 \times 2} = \frac{400}{ - 8} = - 50[/tex]