Question

(2x^2 + 3x-20)/ (4+x) limit as x approaches -4? Is it infinity?

Answer 1

factor the numerator

Answer 2

I tried, but had a hard time.

Answer 3

Synthetic division. Try using the denominator as a possible factor

Answer 4

I got it! -13

Answer 5

@LucyLu15 What does that even mean? What did you try? When did you decide it was TOO hard? Try again. You will not get it if you quit!

2x^2 + 3x-20 = (2x )(x )

Factoring -20 gives:

-1*20
-2*10
-4*5

-20*1
-10*2
-5*4

There are ONLY six possibilities. Try all six. If they ALL fail, THEN you can declare it "too hard to factor".