Use the power rules for exponents to simplify the expression. Give your answer in exponential form.

left parenthesis StartFraction 4 a squared b Superscript 7 Over c Superscript 5 EndFraction right parenthesis squared
​(cnot equals​0)

1 answer

To simplify the expression \(\left(\frac{4a^2b^7}{c^5}\right)^2\) using the power rules for exponents, we will apply the power of a quotient rule and the power of a product rule as follows:

  1. Power of a Quotient Rule: \(\left(\frac{x}{y}\right)^n = \frac{x^n}{y^n}\)
  2. Power of a Product Rule: \((xy)^n = x^n y^n\)

Now, applying these rules to the given expression:

\[ \left(\frac{4a^2b^7}{c^5}\right)^2 = \frac{(4)^2(a^2)^2(b^7)^2}{(c^5)^2} \]

Now we simplify each component:

  • \((4)^2 = 16\)
  • \((a^2)^2 = a^{2 \cdot 2} = a^4\)
  • \((b^7)^2 = b^{7 \cdot 2} = b^{14}\)
  • \((c^5)^2 = c^{5 \cdot 2} = c^{10}\)

Putting it all together, we have:

\[ \frac{16a^4b^{14}}{c^{10}} \]

Thus, the simplified expression in exponential form is:

\[ \frac{16a^4b^{14}}{c^{10}} \]