180k views
5 votes
Factor completely.
7b^2-63

Thank you :DDD

User Yvie
by
8.2k points

1 Answer

4 votes

Since both terms are perfect squares, factor using the difference of squares formula,
a^2-b^2=(a+b)(a-b) where
a=b and
b=3

Answer:


  • 7(b+3)(b-3)
User Javier Cortejoso
by
7.9k points
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