Pertidksamaan Mutlak
sifat |a| < |b| maka a² - b² < 0
(x + 2)² - (x + 5)² < 0
(x + 2 + x + 5) (x + 2- x - 5) <0
(2x+ 7)(- 3) < 0
2x+ 7 > 0
x > - 7/2
NILai MUTlaK
|x + 2| < |x + 5|
(x + 2)² < (x + 5)²
x² + 4x + 4 < x² + 10x + 25
4x - 10x < 25 - 4
-6x < 21
x > -21/6
x > -7/2
HP = {x| x > -7/2, x ∈ R}
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Pertidksamaan Mutlak
sifat |a| < |b| maka a² - b² < 0
(x + 2)² - (x + 5)² < 0
(x + 2 + x + 5) (x + 2- x - 5) <0
(2x+ 7)(- 3) < 0
2x+ 7 > 0
x > - 7/2
NILai MUTlaK
|x + 2| < |x + 5|
(x + 2)² < (x + 5)²
x² + 4x + 4 < x² + 10x + 25
4x - 10x < 25 - 4
-6x < 21
x > -21/6
x > -7/2
HP = {x| x > -7/2, x ∈ R}