Practice problem
Which of the following is equal to x2−2019x+2018x^2-2019x+2018x2−2019x+2018?
(x−2018)(x+1)(x-2018)(x+1)(x−2018)(x+1)
(x−2020)(x−1)(x-2020)(x-1)(x−2020)(x−1)
(x−2018)(x−1)(x-2018)(x-1)(x−2018)(x−1)
(x+2018)(x+1)(x+2018)(x+1)(x+2018)(x+1)
Type a concept, like “slope” or “photosynthesis”.