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OpenStudy (anonymous):
factor x^3-729
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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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