(3×+2)<5 bantuu yah....... Plisss

( 3x + 2 ) < 5
3x < 5 - 2
3x < 3
x < 3/3
x < 1
HP = { x | x < 1 , x € Real }

Bab Nilai Mutlak
Matematika SMA Kelas X

(3x + 2) < 5
√(3x + 2)² < √5²
(3x + 2)² < 5²
(3x + 2)² - 5² < 0
(3x + 2 + 5) (3x + 2 - 5) < 0
(3x + 7) (3x - 3) < 0
3x + 7 > 0
3x > -7
x > -7/3
-7/3 < x

3x - 3 < 0
3x < 3
x < 1

syarat
3x + 2 > 0
3x > -2
x > -2/3

HP = { x | -2/3 < x < 1, x € bilangan real }