Find the limit by direct substitution.

Question

A. lim x-> 5
square root cubed of x^2 -2x - 23. I replaced all of the x's with 5 and got -2.

B. lim x-> -2
(4x^2 - 7x) / (6x + 10). I replaced all of the x's with -2 and got -15. Go to picturetrail and type in rowdy33. It's problems 3a and 3b. Thanks.

Answer 1

A. How did you get -2? Can you show your work?
I get (5)^2-2(5)-23=-8

B. -15 is Correct.