To simplify the expression \(\left(-\frac{5a^3b^4c^{-2}}{3a^{-4}b^0c^3}\right) \cdot 2\), we'll follow the steps.
Step 1: Simplify the Fraction
-
Separate the coefficients:
\[
-\frac{5}{3}
\]
-
Apply the properties of exponents to the variable \(a\):
Using \(\frac{a^m}{a^n} = a^{m-n}\):
\[
\frac{a^3}{a^{-4}} = a^{3 - (-4)} = a^{3 + 4} = a^7
\]
-
Apply the properties of exponents to the variable \(b\):
Since \(b^0 = 1\):
\[
\frac{b^4}{b^0} = \frac{b^4}{1} = b^4
\]
-
Apply the properties of exponents to the variable \(c\):
\[
\frac{c^{-2}}{c^3} = c^{-2 - 3} = c^{-5}
\]
Combining these results, we get:
\[
-\frac{5}{3} a^7 b^4 c^{-5}
\]
Step 2: Incorporate the Multiplication by 2
We now multiply the entire expression by 2:
\[
2 \left(-\frac{5}{3} a^7 b^4 c^{-5}\right) = -\frac{10}{3} a^7 b^4 c^{-5}
\]
Step 3: Rewrite Using Positive Exponents
To express \(c^{-5}\) with a positive exponent:
\[
-\frac{10}{3} a^7 b^4 \cdot \frac{1}{c^5} = -\frac{10 a^7 b^4}{3c^5}
\]
Check for Matching Options
Now, let's see how the simplified result can match the provided options:
- \(c^{10}/a^{14}b^{8}\)
- \(9/25a^{12}\)
- \(-5c^{10}/3a^{14}b^{8}\)
- \(9c^{10}/25a^{14}b^{8}\)
Our final expression is:
\[
-\frac{10 a^7 b^4}{3c^5}
\]
Step 4: Analyze Given Choices
The options seem to not match directly, as none of the options resemble \(-\frac{10 a^7 b^4}{3 c^5}\). However, let’s compare our characteristics with the given options:
- The exponentials of \(a\) and \(b\) values, as well as those of \(c\), might suggest a relation, but the coefficients and exponent forms differ.
- Check if \(c^{-5}\) could potentially relate to \(c^{10}\) in terms of multiplying or similar structure through negatives; this does not hold.
Conclusion
It appears that the expression we derived doesn't match any of the provided choices. The simplified expression is \(-\frac{10 a^7 b^4}{3 c^5}\). If a typo occurred in the answer options or additional constraints not provided initially were included, we cannot draw a correspondence with those choices beneficially.
Thus, the accurate simplified algebraic expression remains:
\[
\boxed{-\frac{10 a^7 b^4}{3 c^5}}
\]