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Bab Nilai Mutlak
Matematika SMA Kelas X

| 2x + 3 | + |x + 1| = 2

2x + 3 + x + 1 = 2
3x + 4 = 2
3x = 2 - 4
x = -2/3

-2x - 3 + (-x - 1) = 2
-3x - 4 = 2
-3x = 2 + 4
x = 6/-3
x = -2

HP = { -2, -1/3 }

Sifat mutlak itu ada yang positif dan ad jg yg negatif

Yg positif...
|2x + 3| + |x + 1| = 2
2x + 3 + x + 1 = 2
3x + 4 = 2
3x = -2
x = -2/3

Yang negatif
|2x + 3| + |x + 1| = 2
2x + 3 + x + 1 = -2
3x + 4 = -2
3x = -6
x = -2

Hp : {-2 , -2/3}