What is expand-(2(-3x^2-1))/((x^2-1)^3) ?

The solution to expand-(2(-3x^2-1))/((x^2-1)^3) is -(-6x^2-2)/(x^6-3x^4+3x^2-1)

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expand-(2(-3x^2-1))/((x^2-1)^3)

expand

- \frac{2 ( - 3 x ^{2} - 1 )}{( x ^{2} - 1 ) ^{3}}

- \frac{- 6 x ^{2} - 2}{x ^{6} - 3 x ^{4} + 3 x ^{2} - 1}

Solution steps

- \frac{2 ( - 3 x ^{2} - 1 )}{( x ^{2} - 1 ) ^{3}}

(x^{2} - 1)^{3} = x^{6} - 3 x^{4} + 3 x^{2} - 1

= - \frac{2 ( - 3 x ^{2} - 1 )}{x ^{6} - 3 x ^{4} + 3 x ^{2} - 1}

Expand

2 (- 3 x^{2} - 1) : - 6 x^{2} - 2

= - \frac{- 6 x ^{2} - 2}{x ^{6} - 3 x ^{4} + 3 x ^{2} - 1}

(x^{2} + y^{2}) d y - 2 x y d x

6 cos (13 5^{\circ}) - 6 cos (4 5^{\circ})

((x m - x n) 2) d x

7 - (13 - 2 (4, - 4))

- 5 + \frac{10 3 x}{2}

What is expand-(2(-3x^2-1))/((x^2-1)^3) ?
The solution to expand-(2(-3x^2-1))/((x^2-1)^3) is -(-6x^2-2)/(x^6-3x^4+3x^2-1)