Solve equations of the form x^a=b Algebra II

\dfrac{\\ln\left(21\right)}{4}

\sqrt{21}

\pm \sqrt[4]{21}

21^4

x=2

x=\sqrt{16}

x=\pm 4

x= 4

x=\pm \sqrt[3]{27}

x=\pm 3

x=3

x=9

x= \sqrt[9]{15}

x=\pm \sqrt[9]{15}

x= \sqrt[15]{9}

x= \sqrt[7]{11}

x= \sqrt[512]{7}

x= \sqrt[7]{512}

x= \pm \sqrt[7]{512}

x= \sqrt[5]{256}

x= \sqrt[99]{6}

x= \sqrt[3]{49}

x=\pm \sqrt[6]{99}

x= \sqrt[6]{99}

x= \sqrt[4]{160}

x= \sqrt[5]{150}

x= \sqrt[9]{200}

x= \sqrt[7]{185}