Question

rezolvati ecuatile : |x+2|=2
10-|2x-√3=7
|-x-3|=1
|5-2x|=0
|x+4|=-2

Answer 1

|x+2|=2

x+2=2...x=0 si

x+2=-2...x=-4

a doua nu e clara, nu ai inchis modulul

daca e 10-|2x-√3|=7 . atunci

|2x-√3|=3

deci 2x-√3=3 ...... x=(3+√3)/2

si 2x-√3=-3...x=(-3+√3)/2

|-x-3|=1=|x+3| pt .ca |ceva|=|-ceva|

x+3=1...x=-2 si x+3=-1...x=-4

|x+4|=-2, x∈∅pt. ca |orice|≥0 si -2<0