lim x menuju 1 x^2+4x-5/4x^2+5x-9

Lim x → 1      x²+4x-5 / 4x²+5x-9
= Lim x → 1   (x+5)(x-1) / (4x+9)(x-1) ------------>> (coret "x-1")
= Lim x → 1   (x+5) / (4x+9) ------------>> (masukkan "x → 1")
= (1+5) / (4.1+9)
= 6/13