The answer is 2.9. You would round up since there is a 5
24 because it’s the lowest multiple of 12 that’s also in 2,6 and 8
Let's factor the top and the bottom.
Top factors 4x + 20 = 4(x + 5)
Bottom x^2 + 2x - 15 = (x + 5)(x - 3)
The gcf is the largest value that will go into both the top and the bottom. In our problem the ONLY thing that will go into top and bottom is x + 5 so that is your GCF. (c)
See attached PDF. (The censor thinks there are some unseemly words in there.)
Your equation is correct.
