What is expand (3(4s+19))/((s+3)(s+4)) ?

The solution to expand (3(4s+19))/((s+3)(s+4)) is (12s+57)/(s^2+7s+12)

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expand (3(4s+19))/((s+3)(s+4))

expand

\frac{3 ( 4 s + 19 )}{( s + 3 ) ( s + 4 )}

\frac{12 s + 57}{s ^{2} + 7 s + 12}

Solution steps

\frac{3 ( 4 s + 19 )}{( s + 3 ) ( s + 4 )}

Expand

(s + 3) (s + 4) : s^{2} + 7 s + 12

= \frac{3 ( 4 s + 19 )}{s ^{2} + 7 s + 12}

Expand

3 (4 s + 19) : 12 s + 57

= \frac{12 s + 57}{s ^{2} + 7 s + 12}

\frac{1}{( x - 5 ) ( x - 2 )}

(9 x + 3) e^{2 x^{2} + 3}

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

(cos (y)) (x + d x)

\frac{1}{( s + 3 ) ( s + 7 )}

What is expand (3(4s+19))/((s+3)(s+4)) ?
The solution to expand (3(4s+19))/((s+3)(s+4)) is (12s+57)/(s^2+7s+12)