Mohon Yang tau Tolong bantu

50) subsitusikan langsung
= limit (-2^3 +4(-2)+ 1) / (-2^2 + 3(-2)+5)
= (-8 - 8 + 1) / (4 -6 + 5)
= -15/3 = -5
51) limit (2x^2 -4x) / (x^2 - 4)
= limit 2x(x -2) / (x -2) (x +2)
= limit 2x / (x +2)
= 2.2 / (2+2)
= 4/4
= 1