Question

Can someone please explain this to me? I can't seem to understand it. Thanks :) (attachment below)

Answer 1

hi ,
the symbol \[\sqrt[3]{something}\] means the cube root of any number inside which is
if we take " x" as an example
\[\sqrt[3]{x} = x^{\frac{ 1 }{ 3 }}\]
so in ur case
\[\sqrt[3]{n^{75}} = (n^{75})^{\frac{ 1 }{ 3 }}\]

now u can use this property
\[(x^{a})^{b} = x^{a \times b}\]

which is
\[(n^{75})^{\frac{ 1 }{ 3 }} = n ^{ 75 \times \frac{ 1 }{ 3}}\]
\[= n^{25}\]

hope this will help ya !! :)

Answer 2

Thank you so much!! It did :)