Whakaoti mō x
x=5
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x+1\right)\times 4+\left(x-1\right)\times 2=32
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara -1,1 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(x-1\right)\left(x+1\right), arā, te tauraro pātahi he tino iti rawa te kitea o x-1,x+1,x^{2}-1.
4x+4+\left(x-1\right)\times 2=32
Whakamahia te āhuatanga tohatoha hei whakarea te x+1 ki te 4.
4x+4+2x-2=32
Whakamahia te āhuatanga tohatoha hei whakarea te x-1 ki te 2.
6x+4-2=32
Pahekotia te 4x me 2x, ka 6x.
6x+2=32
Tangohia te 2 i te 4, ka 2.
6x=32-2
Tangohia te 2 mai i ngā taha e rua.
6x=30
Tangohia te 2 i te 32, ka 30.
x=\frac{30}{6}
Whakawehea ngā taha e rua ki te 6.
x=5
Whakawehea te 30 ki te 6, kia riro ko 5.
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