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OpenStudy (anonymous):
how would i solve x^3 -27
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jimthompson5910 (jim_thompson5910):
x^3-27 x^3-(3)^3 (x-3)((x)^2+(x)(3)+(3)^2) (x-3)(x^2+3x+9) So x^3-27=(x-3)(x^2+3x+9)
OpenStudy (mimi_x3):
(x-3)(x^2+3x+9)
jimthompson5910 (jim_thompson5910):
I'm using the difference of cubes formula to factor on the third step.
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