Question

|2.x+3|=5

Tìm x

Answer 1

|2.x+3| = 5

 2.x     =  5-3

2.x      = 2

  x     = 2:2

  x     = 1

Answer 2

x=1 hoac x= -4

Answer 3

|2.x+3|=5

=>2.x+3=±5

Th1:2x+3=5                                Th2:2x+3=-5

=>2x=2                                     =>2x=-8

=>x=1                                       =>x=-4

Answer 4

x=1 hoặc x=-4 

tíck cho mk nha!!!!!!!!!!!!!!!!

Answer 5

x=1

x=4

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