X²-10X+9=0faktorkan Dan carilah akarnya​

x² – 10x + 9 = 0

Maka:

a = 1

b = -10

c = 9

x1,2 = (-b ± √(b² – 4ac))/2a

= (10 ± √((-10)² – 4(1)(9)))/(2(1))

= (10 ± √(100 – 36))/2

= (10 ± √64)/2

= (10 ± 8)/2

= 5 ± 4

Maka:

x = 9 atau x = 1