Question

Tolong yaaa, pakai cara

Answer 1

X²-(n+1) x + (n+3) = 0

a = 1, b = -(n+1) , c = n+3

 ..pers 1

 ..pers 2

 --> subtitusi pers 1 :



 ..pers 3

 --> subtitusi pers 2 :


...pers 4

pers 3 subtitusi ke pers 4









2n² - 5n - 25 = 0
(2n + 5)(n - 5) = 0
 2n+5 = 0   dan n-5 = 0
        n = -5/2  atau   n = 5

Hp {5 atau - 5/2}