Question

What is the value of the shown expression? 33 x 3-2 A) -54 B) -243 C) 243 D) 3

Answer 1

We have the following general rule for exponents:

$a^n\cdot a^m=a^{n+m}$

then, in this case we have the following:

$3^3\cdot3^{-2}=3^{3+(-2)}=3^{3-2}=3^1=3$

therefore, the answer is 3