Video: Evaluating Positive Single Term Rational Expressions with Positive Integer Exponents

Which of the following is equal to (5/2)³? [A] 8/5 [B] 15/6 [C] 125/2 [D] 125/8 [E] 243/9.

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Video Transcript

Which of the following is equal to five-halves cubed?

The expression five-halves cubed where the cube falls outside the parenthesis tells us that we need to cube both the five and the two. Five cubed equals five times five times five. Likewise, two cubed equals two times two times two. Five cubed equals 125. Two cubed equals eight.

Five over two cubed is equal to 125 over eight.

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