What is expand (sqrt(r))/((r-9)^4) ?

The solution to expand (sqrt(r))/((r-9)^4) is (sqrt(r))/(r^4-36r^3+486r^2-2916r+6561)

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expand (sqrt(r))/((r-9)^4)

expand

\frac{r}{( r - 9 ) ^{4}}

\frac{r}{r ^{4} - 36 r ^{3} + 486 r ^{2} - 2916 r + 6561}

Solution steps

\frac{r}{( r - 9 ) ^{4}}

(r - 9)^{4} = r^{4} - 36 r^{3} + 486 r^{2} - 2916 r + 6561

= \frac{r}{r ^{4} - 36 r ^{3} + 486 r ^{2} - 2916 r + 6561}

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

x y d x - (x + 2) d y

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

(2 t - 1) e^{a t}

(a + b)^{2} - 2 a c d + e^{2}

What is expand (sqrt(r))/((r-9)^4) ?
The solution to expand (sqrt(r))/((r-9)^4) is (sqrt(r))/(r^4-36r^3+486r^2-2916r+6561)