Whakaoti mō x
x=\frac{1}{4}=0.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{3x-2}{-x}=\frac{\frac{5}{4}}{\frac{1}{4}}
Tāpirihia te 1 ki te \frac{1}{4}, ka \frac{5}{4}.
\frac{3x-2}{-x}=\frac{5}{4}\times 4
Whakawehe \frac{5}{4} ki te \frac{1}{4} mā te whakarea \frac{5}{4} ki te tau huripoki o \frac{1}{4}.
\frac{3x-2}{-x}=5
Whakareatia te \frac{5}{4} ki te 4, ka 5.
-\left(3x-2\right)=5x
Tē taea kia ōrite te tāupe x ki 0 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te x.
-3x+2=5x
Hei kimi i te tauaro o 3x-2, kimihia te tauaro o ia taurangi.
-3x+2-5x=0
Tangohia te 5x mai i ngā taha e rua.
-8x+2=0
Pahekotia te -3x me -5x, ka -8x.
-8x=-2
Tangohia te 2 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-2}{-8}
Whakawehea ngā taha e rua ki te -8.
x=\frac{1}{4}
Whakahekea te hautanga \frac{-2}{-8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -2.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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