What is expand (s+4)/((s-2)(s+1)) ?

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

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expand (s+4)/((s-2)(s+1))

expand

\frac{s + 4}{( s - 2 ) ( s + 1 )}

\frac{s + 4}{s ^{2} - s - 2}

Solution steps

\frac{s + 4}{( s - 2 ) ( s + 1 )}

Expand

(s - 2) (s + 1) : s^{2} - s - 2

= \frac{s + 4}{s ^{2} - s - 2}

(3 - \frac{y}{3})^{2}

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

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

(- 9 + 2 i) (- 9 + A i) (- 9 - A i)

[\frac{k ( k + 1 )}{2}] + (k + 1)

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