Якщо х=4, то:
[tex] \frac{ {x}^{2} - 2}{7x} = \frac{ {4}^{2} - 2}{7 \times 4} = \frac{16 - 2}{28} = \frac{14}{28} = \frac{1}{2} [/tex]
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Якщо х=4, то:
[tex] \frac{ {x}^{2} - 2}{7x} = \frac{ {4}^{2} - 2}{7 \times 4} = \frac{16 - 2}{28} = \frac{14}{28} = \frac{1}{2} [/tex]