Question

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Answer 1

Answer:

○ B. $\displaystyle \frac{2r^4}{s^3}$

Step-by-step explanation:

First off, whenever you divide similar bases, you keep the base and subtract the exponents, so you will have this:

$\displaystyle {2r^4s^{-3}}$

Now this IS the correct, but although we do not see it here, we have to deal with that negative exponent, and according to the Negative Exponential Rule [part I], you bring this part of the numerator to the denominator WHILE ALTERING THE SIGN FROM NEGATIVE TO POSITIVE, so you will have this final answer:

$\displaystyle \frac{1}{b^n} = b^{-n} \\ \\ \frac{2r^4}{s^3}$

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