T2 Sec 3 #15

If you ask me, this one is *begging* for plug in. Say that *x* = 2. Then becomes . Which answer choice also equals when *x* = 2?

A)

B)

C)

D)

Only choice D equaled , so D is the answer!

The mathy way, because I know someone’s going to want to see it, is to do polynomial division:

That’s 5 with a remainder of –17, which can also be written as .