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Mathematics 11 Online
OpenStudy (anonymous):

factorise 20x^3 - 5x

OpenStudy (anonymous):

Pull the greatest common factor from each term (5x) and you get: 5x(4x^2 -1) Then you see that (4x^2-1) is a difference of two squares so 5x(2x+1)(2x-1) is the simplest form.

OpenStudy (anonymous):

thank you cheers!

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