How do you factor h^2-12h+27?

1 Answer
Richard G.
Nov 14, 2015

h = 9 , 3

Explanation:

Factor the first expression. h^2 -> h , h
Factor the last expression. 27 -> 3 , 9
Since the last expression is positive, and the second expression is negative, BOTH of the factors must be negative.
(h - 3) , (h - 9) =0
To make this true, the first factor could be equal to zero, or the second factor could be zero.
(h-3)=0 -> h=3 or (h-9)=0 ->h=9

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