How do you factor # p^2-12p-27#?

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Answer 1 · 2016-07-17T17:32:53

#p^2 -12p -27# does not factorise.

#p^2 -12p + 27# factorises to give(# (p-9)(p-3) #

#p^2 -12p -27#

Find factors of 27 which subtract to make 12.

This does not factorise.

#p^2 -12p + 27# factorises.

Find factors of 27 which add to give 12.

#(p-9)(p-3)#