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Mathematics 13 Online
OpenStudy (anonymous):

Choose one of the factors. 5x^3-135 A.5 B.X-3 C.X^2+3x+9 D.ALL OF THE ABOVE

OpenStudy (jdoe0001):

|dw:1376423447839:dw| \(\bf 5x^3-135 \implies 5x^3-(5\times3\times3\times3)\\ \textit{getting common factor of 5}\\ 5(x^3-(3\times3\times3)) \implies 5(x^3-3^3)\\ \textit{keep in mind that } a^3-b^3 = (a-b)(a^2+ab+b^2)\)

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