Question

решить модуль 2|4х+5|=6

Answer 1

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$2 \times |4x + 5| = 6 \\ \\ |4x + 5| = 3 \\ \\ a) \: \: 4x + 5 = 3 \\ 4x = 3 - 5 \\ 4x = - 2 \\ x = - \frac{2}{4} = - 0.5 \\ \\ b) \: \: 4x + 5 = - 3 \\ 4x = - 3 - 5 \\ 4x = - 8 \\ x = - \frac{8}{4} = - 2$


ОТВЕТ: - 2 ; - 0,5

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