What is expand pi(16-x^2)^2 ?

The solution to expand pi(16-x^2)^2 is pix^4-32pix^2+256pi

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expand pi(16-x^2)^2

expand

π (16 - x^{2})^{2}

π x^{4} - 32 π x^{2} + 256 π

Solution steps

π (16 - x^{2})^{2}

(16 - x^{2})^{2} = 256 - 32 x^{2} + x^{4}

= π (x^{4} - 32 x^{2} + 256)

Distribute parentheses

= π 256 + π (- 32 x^{2}) + π x^{4}

Apply minus-plus rules

+ (- a) = - a

= 256 π - 32 π x^{2} + π x^{4}

Rewrite in standard form

= π x^{4} - 32 π x^{2} + 256 π

\frac{6 + 8 i}{4 + ( x + 3 ) i}

2 (ln (x))

\frac{( s + 2 )}{( 5 s + 3 ) ^{\frac{3}{2}}}

6 (g) + 8

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

What is expand pi(16-x^2)^2 ?
The solution to expand pi(16-x^2)^2 is pix^4-32pix^2+256pi