Jika p2 - 6p = -8 dan 8p - q = 4, maka q - 5=

Kelas 10 Matematika
Bab Persamaan Kuadrat

p² - 6p = -8
p² - 6p + 8 = 0
(p - 4) (p - 2) = 0
p - 4 = 0
p = 4

p - 2 = 0
p = 2

8p - q = 4
8 . 4 - q = 4
q = 32 - 4
q = 28

8p - q = 4
8 . 2 - q = 4
q = 16 - 4
q = 12

q - 5 = 28 - 5
q - 5 = 23

q - 5 = 12 - 5
q - 5 = 7

maka, hasilnya adalah 23 atau 7