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9b²-1 factor completely

9b²-1 factor completely
asked 41.2k views
5 votes
9b²-1
factor completely

asked
User Sasuri
by
8.5k points

1 Answer

5 votes

Answer:

(3b - 1)(3b + 1).

Explanation:

Difference of 2 squares:

a^2 - b^2 = (a - b)(a + b) so here we have:

9b^2 - 1 = (3b - 1)(3b + 1).

answered
User Gwhyyy
by
8.7k points
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