Question

2[3|2x+1|-8]-5=9
Va rog​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

2[3|2x+1|-8]-5=9

caz 1

|2x+1|>=0

|2x+1|=2x+1

2[3|2x+1|-8]-5=9

2[3(2x+1)-8]-5=9

2(6x+3-8)-5=9

2(6x-5)-5=9

12x-10-5=9

12x-15=9

12x=9+15

12x=24

x=24:12

x=2

caz 2

|2x+1|<0

2x+1|=-2x-1

2[3|2x+1|-8]-5=9

2[3(-2x-1)-8]-5=9

2[-6x-3-8)-5=9

2(-6x-11)-5=9

-12x-22-5=9

-12x-27=9

-12x=9+27

-12x=36

x=36:(-12)

x=-3