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

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

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

expand

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

\frac{1}{s ^{4} + b ^{2} s ^{2} + a ^{2} s ^{2} + a ^{2} b ^{2}}

Solution steps

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

Expand

(s^{2} + a^{2}) (s^{2} + b^{2}) : s^{4} + b^{2} s^{2} + a^{2} s^{2} + a^{2} b^{2}

= \frac{1}{s ^{4} + b ^{2} s ^{2} + a ^{2} s ^{2} + a ^{2} b ^{2}}

(y + 2) (y - 2)

\frac{1}{( 4 + x ) ^{2}}

(a - 2) (a + 2)

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

- \frac{4 ( - 3 s ^{2} + 12 s - 8 )}{( s ^{2} - 4 s + 8 ) ^{3}}

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