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Tohaina

9f\left(g-5\right)-7\left(g-5\right)
Mahia te whakarōpūtanga 9fg-45f-7g+35=\left(9fg-45f\right)+\left(-7g+35\right), ka whakatauwehea atu 9f i te tuatahi me -7 i te rōpū tuarua.
\left(g-5\right)\left(9f-7\right)
Whakatauwehea atu te kīanga pātahi g-5 mā te whakamahi i te āhuatanga tātai tohatoha.