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6\left(4x^{3}+3x^{2}-x\right)
Tauwehea te 6.
x\left(4x^{2}+3x-1\right)
Whakaarohia te 4x^{3}+3x^{2}-x. Tauwehea te x.
a+b=3 ab=4\left(-1\right)=-4
Whakaarohia te 4x^{2}+3x-1. Whakatauwehea te kīanga mā te whakarōpū. Tuatahi, me tuhi anō te kīanga hei 4x^{2}+ax+bx-1. Hei kimi a me b, whakaritea tētahi pūnaha kia whakaoti.
-1,4 -2,2
I te mea kua tōraro te ab, he tauaro ngā tohu o a me b. I te mea kua tōrunga te a+b, he nui ake te uara pū o te tau tōrunga i tō te tōraro. Whakarārangitia ngā tau tōpū takirua pērā katoa ka hoatu i te hua -4.
-1+4=3 -2+2=0
Tātaihia te tapeke mō ia takirua.
a=-1 b=4
Ko te otinga te takirua ka hoatu i te tapeke 3.
\left(4x^{2}-x\right)+\left(4x-1\right)
Tuhia anō te 4x^{2}+3x-1 hei \left(4x^{2}-x\right)+\left(4x-1\right).
x\left(4x-1\right)+4x-1
Whakatauwehea atu x i te 4x^{2}-x.
\left(4x-1\right)\left(x+1\right)
Whakatauwehea atu te kīanga pātahi 4x-1 mā te whakamahi i te āhuatanga tātai tohatoha.
6x\left(4x-1\right)\left(x+1\right)
Me tuhi anō te kīanga whakatauwehe katoa.