What is expand ((x+3)(x+1))/(x^2+1) ?

The solution to expand ((x+3)(x+1))/(x^2+1) is (x^2+4x+3)/(x^2+1)

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expand ((x+3)(x+1))/(x^2+1)

expand

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

\frac{x ^{2} + 4 x + 3}{x ^{2} + 1}

Solution steps

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

Expand

(x + 3) (x + 1) : x^{2} + 4 x + 3

= \frac{x ^{2} + 4 x + 3}{x ^{2} + 1}

2 x l e f t (x^{2} - 3)

- \frac{1}{9} (9 - x)^{3} - 4 (9 - x) - 20

(x + 1) (x^{2} + 1) 2 - x

(- 5 x^{2} - 10 x - 7 y + 2) d e (3 x^{2} - 4 + 7 x)

(3 - e^{3 x})^{2}

What is expand ((x+3)(x+1))/(x^2+1) ?
The solution to expand ((x+3)(x+1))/(x^2+1) is (x^2+4x+3)/(x^2+1)