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7x^{2}\left(x+2\right)-6\left(x+2\right)
Mahia te whakarōpūtanga 7x^{3}-12-6x+14x^{2}=\left(7x^{3}+14x^{2}\right)+\left(-6x-12\right), ka whakatauwehea atu 7x^{2} i te tuatahi me -6 i te rōpū tuarua.
\left(x+2\right)\left(7x^{2}-6\right)
Whakatauwehea atu te kīanga pātahi x+2 mā te whakamahi i te āhuatanga tātai tohatoha. Kāore te pūrau 7x^{2}-6 i whakatauwehea i te mea kāhore ōna pūtake whakahau.