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

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

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

expand

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

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

Solution steps

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

Expand

(t + 2) (t - 2) : t^{2} - 4

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

(2 n + 1) π

\frac{( x + 5 ) ( x - 3 )}{( x + 3 )}

(y + v y) d y

\frac{2 a x + x ^{2}}{( a + x ) ^{2}}

\frac{( n + 1 ) u}{1 - ( n + 1 ) u}

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