Question

Xpangkat2+5x+6 per xpangkat2+6x+8

Answer 1

X² + 5x + 6 = (x + 2) (x + 3)
x² + 6x + 8 = (x + 2) (x + 4)

maka :
( x² + 5x + 6 ) / ( x² + 6x + 8 ) = {(x + 2) (x + 3)} / { (x + 2) (x + 4) }  
=  (x + 3) / (x + 4)

Answer 2

X^2+5x+6 / x^2+6x+8
(x+3) (x+2) / (x+4) (x+2)
(x+3)/(x+4)