luiszaragosa luiszaragosa

21-02-2017
Mathematics

contestada

Factor the following differences of squares.

1 - 9a^2

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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)

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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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