Nilai mutlak linear satu variabel |5× - 4|=6 #tolongbantudikumpulbesok

Materi : Nilai Mutlak
Bahasan : Persamaan Nilai Mutlak
Jawaban : x = 2 atau x = - (2/5)

Langkah - langkah :
|f(x)| = a, f(x) = a atau f(x) = - a
|5x - 4| = 6
⇒ 5x - 4 = 6
5x = 10
x = 2

⇒ 5x - 4 = - 6
5x = - 2
x = - (2/5)

|5x - 4| = 6

• 5x - 4 = 6
x = (6 + 4)/5
x = 2

• 5x - 4 = -6
x = (-6 + 4)/5
x = -2/5

HP = {-2/5 , 2}