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

The solution to expand-2left(1+x^2)^2 is -2elft-4elftx^2-2elftx^4

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

expand

- 2 l e f t (1 + x^{2})^{2}

- 2 e l f t - 4 e l f t x^{2} - 2 e l f t x^{4}

Solution steps

- 2 l e f t (1 + x^{2})^{2}

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

= - 2 e l f t (x^{4} + 2 x^{2} + 1)

= - 2 e l f t (1 + 2 x^{2} + x^{4})

Distribute parentheses

= (- 2 l e f t) \cdot 1 + (- 2 l e f t) \cdot 2 x^{2} + (- 2 l e f t) x^{4}

Apply minus-plus rules

+ (- a) = - a

= - 2 \cdot 1 e l f t - 2 \cdot 2 e l f t x^{2} - 2 e l f t x^{4}

Simplify

- 2 \cdot 1 e l f t - 2 \cdot 2 e l f t x^{2} - 2 e l f t x^{4} : - 2 e l f t - 4 e l f t x^{2} - 2 e l f t x^{4}

= - 2 e l f t - 4 e l f t x^{2} - 2 e l f t x^{4}

\frac{d}{d θ} ((x (θ)) a (θ - sin (θ)))

(cos (t) + i sin (t))^{2} (- sin (t) + i cos (t))

\frac{1}{3} (- t^{3} + 2 - cot (t^{3} - 2))

sin (t) - y e^{t} (- t e^{- t} - e^{- t} + 1)

(x + 5 + x)^{2}

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