What is expand (t^2-1)/((t^2+1)^2) ?

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

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expand (t^2-1)/((t^2+1)^2)

expand

\frac{t ^{2} - 1}{( t ^{2} + 1 ) ^{2}}

\frac{t ^{2} - 1}{t ^{4} + 2 t ^{2} + 1}

Solution steps

\frac{t ^{2} - 1}{( t ^{2} + 1 ) ^{2}}

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

= \frac{t ^{2} - 1}{t ^{4} + 2 t ^{2} + 1}

Q (- 5, 3) (3, - 2)

\frac{5 ( - 3 s - 8 )}{s + 3}

510 \cdot (\frac{π}{30})

\frac{s + 2}{s ( s ^{2} + s + 1 )}

\frac{3 x ^{2} + 2}{x ( x - 1 )}

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