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21-06-2016
Mathematics

Answered

Factor each expression.

Problem: g^2 - 9

Answer: (g + 3) (g - 3)

Verified Answer :

21-06-2016

\(g^2-9\)
The 9 here could be rewritten as 3^2,

\(g^2-3^2\)
Factor the difference in these two squares, you get
\((g-3)(g+3)\)

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