11 Write the expression with only positive exponents. \( \frac{4 y^{-8}}{x^{3}} \)

To write the expression with only positive exponents, we can rewrite \(y^{-8}\) as \(\frac{1}{y^{8}}\). Thus, the expression becomes: \[ \frac{4 y^{-8}}{x^{3}} = \frac{4}{x^{3} y^{8}} \] This gives us the same value but with all positive exponents. Now you have the expression \(\frac{4}{x^{3} y^{8}}\), which is in its simplified form using only positive exponents!