Question

exercitiu 12 va rog !!!Dau coroana!​

Answer 1

Răspuns:

Explicație pas cu pas:

2/x/ - 3 = 5

2/x/ = 8

/x/ = 4

x = {-4; 4}

___________

/2x - 1/ = 17

2x - 1 = 17

2x = 18

x = 9

2x - 1 = -17

2x = -16

x = -8

___________

3/x + 1/ + 5 = /x + 1/ + 11

2 /x + 1/ = 6

/x + 1/ = 3

x + 1 = 3

x = 2

x + 1 = -3

x = -4

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-4/2x - 1/ + 2 = -/2x -1/ - 7

9 = 3/2x - 1/

/2x - 1/ = 3

2x - 1 = 3

2x = 4

x = 2

2x - 1 = -3

2x = -2

x = -1