A) Es irreducible
B) x/(x +2)
C) x/(x - 2)
D) 1/2

A) (x + 5)/(x - 8)
B) (x - 5)/(x + 8)
C) Es irreducible
D) (x - 5)/(x - 8)

A) 2·x/(x + 3
B) 2·x/(2·x - 3)
C) - 2·x/(2·x + 3)
D) - 2/(x - 3)

A) 3/(2·(2·x - 1))
B) Es irreducible
C) 3x/(4·x - 2)
D) 3/(2·x - 1)

A) 2/(x - 1)
B) 2/(x + 1)
C) 2·x/(x - 1)
D) 2·x/(x + 1)

A) (4·x² - 3·x - 6)/(3·(2·x + 3)²)
B) (4·x² - 3·x - 6)/((2·x - 3)(2x+3))
C) (4·x² + 3·x - 6)/((2·x + 3)²)
D) (4·x² + 3·x + 6)/(3·(2·x + 3))

A) 2·x/(x² + x - 1)
B) 2·x/(x² - x + 1)
C) 2/(x² + x - 1)
D) x/(x² - x + 1)

A) (38·x³ - 157·x² - 4352·x - 11837)/(10·(x - 2)·(x + 5)·(x + 7)·(x + 13))
B) (38·x³ + 157·x² + 4352·x + 11837)/(10·(x + 2)·(x - 5)·(x - 7)·(x - 13))
C) (38·x³ - 157·x² - 4352·x + 11837)/(10·(x - 2)·(x + 5)·(x + 7))
D) (38·x³ - 157·x² - 4352·x - 11837)/((x - 2)(x + 5)(x + 13))

A) x·(x - 5)/((x - 1)·(x + 3))
B) (x - 5)/((x - 1)·(x + 3))
C) x·(x - 5)/((x + 1)·(x -3))
D) x/(x - 1)

A) (x + 2)/((x + 1))
B) (x + 2)/(2·(2·x + 1))
C) (x -2)/((2·x + 1)
D) (x - 2)/(2·(2·x -1))