How do you find the product of (n-3)(n+3)(n−3)(n+3)?

1 Answer
Barney V.
May 10, 2017

color(blue)(n^2-9n2−9

Explanation:

(n-3)(n+3)(n−3)(n+3)
color(white)(......................)n-3
color(white)(.................) xx n+3
color(white)(......................)overline(n^2-3n)
color(white)(.........................)+3n-9
color(white)(......................)overlinecolor(blue)((n^2" "-9)

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