possibility568 possibility568

12-11-2020
Mathematics

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9b²-1
factor completely

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Respuesta :

oscar236 oscar236

12-11-2020

Answer:

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

Step-by-step explanation:

Difference of 2 squares:

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

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

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