What is expand-(6(-3x^2+1))/((3x^2+1)^2) ?

The solution to expand-(6(-3x^2+1))/((3x^2+1)^2) is -(-18x^2+6)/(9x^4+6x^2+1)

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expand-(6(-3x^2+1))/((3x^2+1)^2)

expand

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

- \frac{- 18 x ^{2} + 6}{9 x ^{4} + 6 x ^{2} + 1}

Solution steps

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

(3 x^{2} + 1)^{2} = 9 x^{4} + 6 x^{2} + 1

= - \frac{6 ( - 3 x ^{2} + 1 )}{9 x ^{4} + 6 x ^{2} + 1}

Expand

6 (- 3 x^{2} + 1) : - 18 x^{2} + 6

= - \frac{- 18 x ^{2} + 6}{9 x ^{4} + 6 x ^{2} + 1}

\frac{- 3 x ^{2} + 8 x + 3}{( x ^{2} + 1 ) ^{2}}

(x + 4) (x + 2)

\frac{d}{d x} ((x - 1) (x - 17)^{3}) + 13

(x + vx) d x

(x + 4) (x + 1)

What is expand-(6(-3x^2+1))/((3x^2+1)^2) ?
The solution to expand-(6(-3x^2+1))/((3x^2+1)^2) is -(-18x^2+6)/(9x^4+6x^2+1)