What is expand (s+1)(s+3)+1/s+x/s+y/s (s+1) ?

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

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expand (s+1)(s+3)+1/s+x/s+y/s (s+1)

expand

(s + 1) (s + 3) + \frac{1}{s} + \frac{x}{s} + \frac{y}{s} (s + 1)

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

Solution steps

(s + 1) (s + 3) + \frac{1}{s} + \frac{x}{s} + \frac{y}{s} (s + 1)

Expand

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

= s^{2} + 4 s + 3 + \frac{1}{s} + \frac{x}{s} + \frac{y}{s} (s + 1)

Expand

\frac{y}{s} (s + 1) : y + \frac{y}{s}

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

Join

s^{2} + 4 s + 3 + \frac{1}{s} + \frac{x}{s} + y + \frac{y}{s} : s^{2} + 4 s + 3 + \frac{1 + x + y}{s} + y

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

(y^{'} (x) + y cot (x)) sin (x)

(2 y - x + 3) d x + 2 d y

(13 a + 8 b = 2,) (11 a + 4 b = 1)

\frac{1}{9} (e^{3 t} \cdot 3 t - e^{3 t})

(3 x^{2} + x + 3 \circ x + 4) (x)

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