To simplify the expression \(\sqrt{-36x^6y^{14}}\), we first observe the components:
- The coefficient \(-36\) can be factored out into \(-1\) and \(36\).
- The square root of \(36\) is \(6\).
- The square root of \(x^6\) is \(x^3\).
- The square root of \(y^{14}\) is \(y^7\).
So we can rewrite the expression as:
\[ \sqrt{-36x^6y^{14}} = \sqrt{-1} \cdot \sqrt{36} \cdot \sqrt{x^6} \cdot \sqrt{y^{14}} = i \cdot 6 \cdot x^3 \cdot y^7 = 6i x^3 y^7 \]
Thus, the expression that is equivalent to \(\sqrt{-36x^6y^{14}}\) is:
\[ 6i x^3 y^7 \]
Looking at the multiple choice answers, the correct answer is:
6i \(x^3\) \(y^7\).