Question

What is `lim_(xrarr4) ([(x^2) + 5x + 4] / [(x^2) + 3x -4])`?

Answer 1

I found `5/3`

Explanation:

Using `4` directly into your function you get:
`lim_(x->4)(x^2+5x+4)/(x^2+3x-4)=(4^2+5*4+4)/(4^2+3*4-4)=40/24=5/3`