Which of the following expressions is equivalent to \(\sqrt[4]{81x^{16}}\) ?
\(3x^2\)
\(3x^4\)
\(3x^8\)
\(9x^4\)
\(9x^8\)
Summary
Submit
Skip Question
Approach
$$ \sqrt[4]{81x^{16}} = \sqrt[4]{3^4(x^4)^4} $$ $$ \sqrt[4]{(3x^4)^4} = 3x^4 $$