Answered

find a polynomial function with integral coefficient that has the given number of roots. 2,1,-2

Sagot :

P(x) = (x-2) (x-1) (x+2)
  = (x-2) (x+2) (x-1)
  = (x² - 4) (x-1)
  = x³ - x² -4x + 4

Answer:
P (x) = x³-x² - 4x + 4