Пошаговое объяснение:
4)
[tex]2x \times 4 - 5 x \times 2 + 2 = 0 \\ 8x - 10x + 2 = 0 \\ - 2x + 2 = 0 \\ - 2x = - 2 \\ x = \frac{ - 2}{ - 2 } \\ x = 1[/tex]
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Пошаговое объяснение:
4)
[tex]2x \times 4 - 5 x \times 2 + 2 = 0 \\ 8x - 10x + 2 = 0 \\ - 2x + 2 = 0 \\ - 2x = - 2 \\ x = \frac{ - 2}{ - 2 } \\ x = 1[/tex]