Question

|3-4x|=5 ;
3+|4x-2|=x+2;
|2-4x|+1=x-1​

Answer 1

Răspuns:

|3-4x| = 5

3-4x=5

3-4x=-5

x=-1/2

x=2

X1=-1/2,X2,=2

3+|4x-2|=x+2

|4x-2|-x=2-3

|4x-2|-x=-1

4x-2-x=-1,4x-2 > 0

- ( 4x-2) - x 1,4x- 2 < 0

x= 1/3 ,x= > 1/2

x= 3/5,x= < 1/2

|2-4x|+1 =x-1

|2-4x|-x=-1-1

|2-4x|-x=-2

2-4x-x-2,2-4x > 0

-(2-4x)-x=-2,2-4x<0

x= 4/5 ,x= < 1/2

x= 0, x= > 1/2