What is expand (5x^2)/((x^2-9)^2) ?

The solution to expand (5x^2)/((x^2-9)^2) is (5x^2)/(x^4-18x^2+81)

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expand (5x^2)/((x^2-9)^2)

expand

\frac{5 x ^{2}}{( x ^{2} - 9 ) ^{2}}

\frac{5 x ^{2}}{x ^{4} - 18 x ^{2} + 81}

Solution steps

\frac{5 x ^{2}}{( x ^{2} - 9 ) ^{2}}

(x^{2} - 9)^{2} = x^{4} - 18 x^{2} + 81

= \frac{5 x ^{2}}{x ^{4} - 18 x ^{2} + 81}

4 (5 - sin (x))

7 (6 + 4)

(2 x y) (cos (t)) + (x^{2} - 2 y) (e^{t})

(x y - y) (x y + x)

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

What is expand (5x^2)/((x^2-9)^2) ?
The solution to expand (5x^2)/((x^2-9)^2) is (5x^2)/(x^4-18x^2+81)