Plz help solve thsi problem thank you

Step-by-step explanation:

if x+2 is a factor then

replace by -2 and equate expression to 0

we get

3(-2)^3 - 2×-2 +k=0

24+4+k=0

k = -28

hope it is correct

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168