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Mathematics 23 Online
OpenStudy (anonymous):

factorise 81x^7-144x^5

OpenStudy (anonymous):

=9x^5(9x^2-16)=9x^5(3x-4)(3x+4)

OpenStudy (hoblos):

=9x^5(9x^2-16) =9x^5(3x-4)(3x+4)

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