Question

Himpunan penyelesaian dari pertidaksamaan |5×-1|>=9 adalah....

Answer 1

Verified answer

|5x-1| >= 9
-9 >= 5x-1 >=9
-9+1 >= 5x >= 9+1
-8 >= 5x >= 10
-8/5 >= x >= 10/5
-8/5 >= x >= 2

HP = {x| -8/5 >= x >= 2 x€R}

smoga membantu☺

Answer 2

|5x-1| ≥ 9

-9+1 ≥ 5x-1 +1 ≥ 9+1
-8 ≥ 5x ≥ 10
-8/5 ≥ 5x/5 ≥ 10/5
-1 3/5 ≥ x ≥ 2

HP = {x | -1 3/5 ≥ x ≥ 2}
#semoga membantu