hasil dari |x+4| + |x+2|=12

Bab Nilai Mutlak
Matematika SMA Kelas X

|x + 4| + |x + 2| = 12

x + 4 + x + 2 = 12
2x = 12 - 6
x = 6/2
x = 3

x + 4 + x + 2 = -12
2x = -12 - 6
x = -18/2
x = -9

HP = { -9, 3 }