Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
-$3 x ^{- 3}$
A) $- 9 x$
B) $- \frac { 1 } { 9 x }$
C) $\frac { 1 } { 27 x ^ { 3 } }$
D) $\frac { 3 } { x ^ { 3 } }$

Question

Quizplus · Accepted Answer

To write the expression with only positive exponents, we use the rule $a^{-n} = \frac{1}{a^n}$. Applying this to $3x^{-3}$, we get $\frac{3}{x^3}$.

Write the Expression with Only Positive Exponents and Evaluate If 3x−33 x ^{- 3}3x−3

Write the Expression with Only Positive Exponents and Evaluate If $3 x ^{- 3}$