Question

Multumesc muult
Dau coroana

Answer 1

Răspuns:

x=5,-5

Explicație pas cu pas:

$a) |x - 5| = 0 \\ x - 5 = 0 \\ x = 5 \\ sau \\ |x - 5| = 0 \\ - x + 5 = 0 \\ - x = - 5 | \times ( - 1) \\ x = 5 \\ b) |2x + 10| = 0 \\ 2x + 10 = 0 \\ 2x = - 10 \\ x = \frac{ - 10}{2} \\ x = - 5$