How do you factor $3p^3 - 21p^2 - p + 7$ ?

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Answer 1 · 2015-05-03T20:51:06

$color(red)(3p^3−21p^2)color(blue)(-p+7)$

$=color(red)((3p^2)(p-7))+color(blue)((-1)(p-7))$

$=(3p^2-1)(p-7)$

How do you factor 3p^3 - 21p^2 - p + 73p^3 - 21p^2 - p + 7?