What is expand 2pi-2pix(2-2x^2) ?

The solution to expand 2pi-2pix(2-2x^2) is 2pi+4pix^3-4pix

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expand 2pi-2pix(2-2x^2)

expand

2 π - 2 π x (2 - 2 x^{2})

2 π + 4 π x^{3} - 4 π x

Solution steps

2 π - 2 π x (2 - 2 x^{2})

Expand

- 2 π x (2 - 2 x^{2}) : 4 π x^{3} - 4 π x

= 2 π + 4 π x^{3} - 4 π x

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

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

\frac{1}{x ( x - a )}

(sec (x) - 1) cot (x) - csc (x)

a sin ((n - 1) \frac{π}{2})

What is expand 2pi-2pix(2-2x^2) ?
The solution to expand 2pi-2pix(2-2x^2) is 2pi+4pix^3-4pix