Ssmith31
Ssmith31 Ssmith31
  • 23-01-2017
  • Mathematics
contestada

Factor this expression completely 9a 4 - b 2

Respuesta :

Аноним Аноним
  • 23-01-2017
(3a2 + b) • (3a2 - b) would be ur answer x
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gracen30033
gracen30033 gracen30033
  • 23-01-2017
 9a^4 - b^2 
(3a^2)^2 - (b)^2 
Difference of squares 
(3a^2 - b)(3a^2 + b)
Answer Link

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