lim (x+1)(3x-4) x mendekati 3

Substitukan x = 3 ke persamaan.
= (3 + 1)(3(3) - 4)
= (4)(5)
= 20.

Lim (x + 1) (3x - 4)
x→3

= 3 + 1 x 3(3) - 4

= 4 x 9 - 4

= 4 x 5

= 20