possibility568
possibility568 possibility568
  • 12-11-2020
  • Mathematics
contestada

9b²-1
factor completely

Respuesta :

oscar236
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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