Tentukan Hp dari |2x-4|<10

PerTidaKsaMaan Nilai Mutlak

|2x - 4| < 10
-10 < 2x - 4 < 10
-10 + 4 < 2x < 10 + 4
-6 < 2x < 14
-6/2 < 2x/2 < 14/2
-3 < x < 7

HP = {x| -3 < x < 7 , x e R}

|2x - 4| < 10
2x - 4 < 10
2x < 10 + 4
2x < 14
x < 7
2x - 4 > -10
2x > -10 + 4
2x > -6
x > -3
HP = {x > -3, x < 7}