What is expand (k^3)/((n^4+k^4)^2) ?

The solution to expand (k^3)/((n^4+k^4)^2) is (k^3)/(n^8+2k^4n^4+k^8)

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expand (k^3)/((n^4+k^4)^2)

expand

\frac{k ^{3}}{( n ^{4} + k ^{4} ) ^{2}}

\frac{k ^{3}}{n ^{8} + 2 k ^{4} n ^{4} + k ^{8}}

Solution steps

\frac{k ^{3}}{( n ^{4} + k ^{4} ) ^{2}}

(n^{4} + k^{4})^{2} = n^{8} + 2 k^{4} n^{4} + k^{8}

= \frac{k ^{3}}{n ^{8} + 2 k ^{4} n ^{4} + k ^{8}}

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What is expand (k^3)/((n^4+k^4)^2) ?
The solution to expand (k^3)/((n^4+k^4)^2) is (k^3)/(n^8+2k^4n^4+k^8)