Question

|2.x-10|-4=-2

 

Answer 1

<=>|2x-10|-4=2(|x-5|-2)

=>2(|x-5|-2)=-2

=>x=4 hoặc 6

Answer 2

x=4 chuẩn men

Answer 3

|2x-10|-4=-2

=>|2x-10|=-2+4=2

TH1:2x-10=2

=>2x=12=>x=6

TH2:2x-10=-2

=>2x=-2+10=8

=>x=4

Vậy xE{4;6}

thần tượng Feliks Zemdegs à?

Answer 4

I2x - 10I -4 = -2

I 2x - 10I = 2

=> 2x - 10 = 2 hoặc 2x - 10 = -2

+) 2x - 10 = 2 => x =6

+) 2x - 10 = -2 => x = 4

x = 6 hoặc x = 4

Answer 5

|2.x-10|=2+4=6

|2x|=6+10=16

x=16chia 2=8

Answer 6

nham cu tuong la -2

Answer 7

|2.x-10|=2

vay x=6

TH2''   |2x.-10|=-2

x=4 

vayXthuoc 6;4