mimi8337
mimi8337 mimi8337
  • 13-09-2019
  • Mathematics
contestada

I need help

Solve 12x-5|<9

I need help Solve 12x5lt9 class=

Respuesta :

anna4321 anna4321
  • 13-09-2019

Answer:

The answer is probably {xl-2<x<7}

Answer Link
yerenkalibek
yerenkalibek yerenkalibek
  • 13-09-2019

Answer:

x∈(-2; 7)

Step-by-step explanation:

1) Separate the inequality into 2 possible cases:

2x-5<9, 2x-5≥0

-(2x-5)<9, 2x-5<0

2) Solve the inequality for x:

x<7, x≥5/2

x>-2, x<5/2

3) Find the intersection:

x∈[5/2; 7)

x∈(-2' 5/2)

4) Find the union:

x∈(-2; 7)

Answer Link

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