Question

||2×+1|-5|=9 calculati

Answer 1

$| |2x + 1| - 5| = 9$

| 2x +1 | -5 = 9
Se desparte in 2 cazuri:
| 2x +1 | =14
=>
2x + 1 = 14 => x = 13/2
2x +1 = -14 => x = -15/2

Raman solutiile
x1 = 13/2
x2 = -15/2