What is expand (12)/((x^2+9)(x^2+1)) ?

The solution to expand (12)/((x^2+9)(x^2+1)) is (12)/(x^4+10x^2+9)

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expand (12)/((x^2+9)(x^2+1))

expand

\frac{12}{( x ^{2} + 9 ) ( x ^{2} + 1 )}

\frac{12}{x ^{4} + 10 x ^{2} + 9}

Solution steps

\frac{12}{( x ^{2} + 9 ) ( x ^{2} + 1 )}

Expand

(x^{2} + 9) (x^{2} + 1) : x^{4} + 10 x^{2} + 9

= \frac{12}{x ^{4} + 10 x ^{2} + 9}

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

(1 - 2 e^{x}) (e^{x} + w)

\frac{( 15 - 3 x )}{( 2 x - 4 ) ( x + 3 )}

\frac{2 ( 4 - 2 )}{3}

- \frac{( x - 1 ) ( x - 4 )}{2}

What is expand (12)/((x^2+9)(x^2+1)) ?
The solution to expand (12)/((x^2+9)(x^2+1)) is (12)/(x^4+10x^2+9)