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

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

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

expand

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

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

Solution steps

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

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

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

Expand

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

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

\frac{( 180 - 45 x ) ( x - 4 )}{2}

\frac{5 ( 3 \cdot 7 ^{15} - 9 \cdot 7 ^{14} )}{7 ^{16} + 3 \cdot 7 ^{15}}

(ln (x)) (x^{2} (3 ln (x) + 1))

(6 a^{3} + 2 ab - 8 b e^{2}) (3 a - 2 b)

36 (4 - π) c m^{2}

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