nilai x yang memenuhi persamaan |x-2|+|x+4|=6

Bab Nilai Mutlak
Matematika SMA Kelas X

|x - 2| + |x + 4| = 6

x - 2 + x + 4 = 6
2x + 2 = 6
2x = 6 - 2
x = 4/2
x = 2

x - 2 + x + 4 = -6
2x + 2 = -6
2x = -6 - 2
x = -8/2
x = -4

HP = { -4, 2 }