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Mathematics 22 Online
OpenStudy (anonymous):

how do you factor x^3 +125

jimthompson5910 (jim_thompson5910):

x^3+125 (x)^3+(5)^3 (x+5)((x)^2-(x)(5)+(5)^2) ... use the sum of cubes factoring formula here (x+5)(x^2-5x+25) So x^3+125 factors to (x+5)(x^2-5x+25) In other words, x^3+125=(x+5)(x^2-5x+25)

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