What is expand 1+k/(ms^2)((s+a)/(s+b)) ?

The solution to expand 1+k/(ms^2)((s+a)/(s+b)) is 1+(ks+ak)/(ms^3+bms^2)

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expand 1+k/(ms^2)((s+a)/(s+b))

expand

1 + \frac{k}{m s ^{2}} (\frac{s + a}{s + b})

1 + \frac{k s + ak}{m s ^{3} + bm s ^{2}}

Solution steps

1 + \frac{k}{m s ^{2}} (\frac{s + a}{s + b})

Remove parentheses:

(a) = a

= 1 + \frac{k}{m s ^{2}} \cdot \frac{s + a}{s + b}

\frac{k}{m s ^{2}} \cdot \frac{s + a}{s + b} = \frac{k s + ak}{m s ^{3} + bm s ^{2}}

= 1 + \frac{k s + ak}{m s ^{3} + bm s ^{2}}

2 (1 + sin (x))

7 sin (22 (x - 13)) - 21

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

(a cos (x) + b sin (x)) (a sin (x) + b cos (x))

cos (x) (4 cos^{2} (x) - 3)

What is expand 1+k/(ms^2)((s+a)/(s+b)) ?
The solution to expand 1+k/(ms^2)((s+a)/(s+b)) is 1+(ks+ak)/(ms^3+bms^2)