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3\left(27-x^{3}\right)
Tauwehea te 3.
\left(x-3\right)\left(-x^{2}-3x-9\right)
Whakaarohia te 27-x^{3}. Tā te Rational Root Theorem, ko ngā pūtake whakahau katoa o tētahi pūrau kei te āhua o \frac{p}{q}, ina wehea e p te kīanga pūmau 27, ā, ka wehea e q te whakarea arahanga -1. Ko tetahi pūtake pērā ko 3. Tauwehea te pūrau mā te whakawehe mā te x-3.
3\left(x-3\right)\left(-x^{2}-3x-9\right)
Me tuhi anō te kīanga whakatauwehe katoa. Kāore te pūrau -x^{2}-3x-9 i whakatauwehea i te mea kāhore ōna pūtake whakahau.