A. How did you get -2? Can you show your work?
I get (5)^2-2(5)-23=-8
B. -15 is Correct.
Find the limit by direct substitution.
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.
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