Evaluate (wx)-4 if w = -3 and x = -4

is the answer: 1 over 144?
Thanks in advance!

4 answers

(wx)-4 if w = -3 and x = -4

= ((-3)(-4)) - 4
= 12 - 4
= 8
that isnt an option for my pre-test..
the answers to choose from are
a. 1 over 12
b. 12-4 (the -4 is an exponent)
c. 1 over 20,736
d. 1/144
Recheck your problem.

As your problem is stated, Reiny is correct.
AHH, looking at your choices, I will conclude you meant
(wx)^-4
which is
1/(wx)^4
= 1/(12^4)
= 1/20736