31.4+3x2-5 Using the order of operations, simplify the expression above. Which of the following is correct?

A. -21

B. -5

C. 5

D. 9

2 answers

Two problems:

(1) no value given for x
(2) I suspect a typo, since there is no "x" term, and two constants.
I assume that x means multiplication in this problem. 10 - 5 = 5