luiszaragosa luiszaragosa
  • 21-02-2017
  • Mathematics
contestada

Factor the following differences of squares.

1 - 9a^2

Respuesta :

ChandrikaP ChandrikaP
  • 21-02-2017
1-9a^2
1-(3a)^2
1^2-(3a)^2  ----------(a^2-b^2)=(a+b)(a-b)
(1+3a)(1-3a)
Answer Link
SyntaxError
SyntaxError SyntaxError
  • 21-02-2017
[tex](1-9a^2)\\ (1-3a)(1+3a)[/tex]

Whenever we have a perfect squared and a variable to the power of 2 being subtracted we can always factor it into two separate quantities.

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