What is expand pi(n-3)^2 ?

The solution to expand pi(n-3)^2 is pin^2-6pin+9pi

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expand pi(n-3)^2

expand

π (n - 3)^{2}

π n^{2} - 6 πn + 9 π

Solution steps

π (n - 3)^{2}

(n - 3)^{2} = n^{2} - 6 n + 9

= π (n^{2} - 6 n + 9)

Distribute parentheses

= π n^{2} + π (- 6 n) + π 9

Apply minus-plus rules

+ (- a) = - a

= π n^{2} - 6 πn + 9 π

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(x + y + z + c + d)^{3}