What is expand (x^4)/((x^2+1)^2) ?

The solution to expand (x^4)/((x^2+1)^2) is (x^4)/(x^4+2x^2+1)

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expand (x^4)/((x^2+1)^2)

expand

\frac{x ^{4}}{( x ^{2} + 1 ) ^{2}}

\frac{x ^{4}}{x ^{4} + 2 x ^{2} + 1}

Solution steps

\frac{x ^{4}}{( x ^{2} + 1 ) ^{2}}

(x^{2} + 1)^{2} = x^{4} + 2 x^{2} + 1

= \frac{x ^{4}}{x ^{4} + 2 x ^{2} + 1}

e^{a t} (cos (t) + a sin (t))

\frac{x ^{2} - x - 21}{( x ^{2} + 4 ) ( 2 x - 1 )}

\frac{x ^{2} ( x ^{2} - 12 )}{( x ^{2} - 4 ) ^{2}}

(x + 2 y)^{2}

\frac{1}{5} - \frac{2}{125} (6.1 - 6)

What is expand (x^4)/((x^2+1)^2) ?
The solution to expand (x^4)/((x^2+1)^2) is (x^4)/(x^4+2x^2+1)