R^2-14r+49=0, tentukan r1 dan r2

Jawaban:

r² – 14r + 49 = 0

( r – 7 ) ( r – 7 ) = 0

r = 7 atau r = 7

r1 = 7

r2 = 7

faktor = 7

~ PK

r² – 14r + 49 = 0

(r – 7)(r – 7) = 0

HP = { 7 }

Maka :

r' = r'' = 7