Question

Coba bantu yg nomer 20

Answer 1

= 
= 
= 
  x² - 3x - 4 = 2x + 2
x² - 3x - 2x - 4 - 2 = 0
x² - 5x - 6 = 0
(x + 1) (x - 6) = 0
x + 1 = 0   atau  x - 6 = 0
      x = - 1 atau       x = 6
p = 6  dan q = - 1
p - q = 6 - (- 1)
        = 6 + 1
        = 7