Whakaoti mō x
x = \frac{13}{2} = 6\frac{1}{2} = 6.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
8x^{2}+6x-9-17=2x\left(4x+1\right)
Whakamahia te āhuatanga tuaritanga hei whakarea te 2x+3 ki te 4x-3 ka whakakotahi i ngā kupu rite.
8x^{2}+6x-26=2x\left(4x+1\right)
Tangohia te 17 i te -9, ka -26.
8x^{2}+6x-26=8x^{2}+2x
Whakamahia te āhuatanga tohatoha hei whakarea te 2x ki te 4x+1.
8x^{2}+6x-26-8x^{2}=2x
Tangohia te 8x^{2} mai i ngā taha e rua.
6x-26=2x
Pahekotia te 8x^{2} me -8x^{2}, ka 0.
6x-26-2x=0
Tangohia te 2x mai i ngā taha e rua.
4x-26=0
Pahekotia te 6x me -2x, ka 4x.
4x=26
Me tāpiri te 26 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{26}{4}
Whakawehea ngā taha e rua ki te 4.
x=\frac{13}{2}
Whakahekea te hautanga \frac{26}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
Ngā Tauira
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Whakarerekētanga
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