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Whakaoti mō x
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\left(3x+5\right)\left(4x+7\right)=\left(12x+3\right)\left(x-16\right)
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara -\frac{5}{3},-\frac{1}{4} nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te 3\left(3x+5\right)\left(4x+1\right), arā, te tauraro pātahi he tino iti rawa te kitea o 12x+3,3x+5.
12x^{2}+41x+35=\left(12x+3\right)\left(x-16\right)
Whakamahia te āhuatanga tuaritanga hei whakarea te 3x+5 ki te 4x+7 ka whakakotahi i ngā kupu rite.
12x^{2}+41x+35=12x^{2}-189x-48
Whakamahia te āhuatanga tuaritanga hei whakarea te 12x+3 ki te x-16 ka whakakotahi i ngā kupu rite.
12x^{2}+41x+35-12x^{2}=-189x-48
Tangohia te 12x^{2} mai i ngā taha e rua.
41x+35=-189x-48
Pahekotia te 12x^{2} me -12x^{2}, ka 0.
41x+35+189x=-48
Me tāpiri te 189x ki ngā taha e rua.
230x+35=-48
Pahekotia te 41x me 189x, ka 230x.
230x=-48-35
Tangohia te 35 mai i ngā taha e rua.
230x=-83
Tangohia te 35 i te -48, ka -83.
x=\frac{-83}{230}
Whakawehea ngā taha e rua ki te 230.
x=-\frac{83}{230}
Ka taea te hautanga \frac{-83}{230} te tuhi anō ko -\frac{83}{230} mā te tango i te tohu tōraro.