What is expand (4x)/((1+x^2)^2) ?

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

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expand (4x)/((1+x^2)^2)

expand

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

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

Solution steps

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

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

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

\frac{n ( n - 1 )}{4}

P_{2} (- 2, - 15) y P_{2} (- 6, - 13)

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

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

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

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