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Mathematics 12 Online
OpenStudy (anonymous):

factor x^3-729

OpenStudy (anonymous):

(x^2-27)(x+27)

OpenStudy (rajee_sam):

No that's not right

OpenStudy (rajee_sam):

this is a difference of cubes polynomial. a³ - b³ x³ - 729 is actually x³ - 9³ So a = x and b = 9 You have the formulas for that a³ - b³ = (a-b) ( a² + ab + b²) Now fill in the values for a and b as we found out above and write your factors

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