What is expand pi(r_{0}-at)^2 ?

The solution to expand pi(r_{0}-at)^2 is pir_{0}^2-2piar_{0}t+pia^2t^2

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expand pi(r_{0}-at)^2

expand

π (r_{0} - a t)^{2}

π r_{0}^{2} - 2 πa r_{0} t + π a^{2} t^{2}

Solution steps

π (r_{0} - a t)^{2}

(r_{0} - a t)^{2} = r_{0}^{2} - 2 a r_{0} t + a^{2} t^{2}

= π (r_{0}^{2} - 2 a r_{0} t + a^{2} t^{2})

Distribute parentheses

= π r_{0}^{2} + π (- 2 a r_{0} t) + π a^{2} t^{2}

Apply minus-plus rules

+ (- a) = - a

= π r_{0}^{2} - 2 πa r_{0} t + π a^{2} t^{2}

\frac{2 x ^{2} + 5}{( x ^{2} + 1 ) ^{2}}

(s + 0.33 + 2.23 i) (s + 0.33 - 2.23 i)

\frac{224 ( 742 + 104689 )}{5945}

\frac{( x ^{5} )}{( x - 2 ) ^{2}}

\frac{10 ( s + 5 )}{s ^{2} + 3 s + 2}

What is expand pi(r_{0}-at)^2 ?
The solution to expand pi(r_{0}-at)^2 is pir_{0}^2-2piar_{0}t+pia^2t^2