Whakaoti mō x
x=0
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x-2\right)\times 2+\left(x+2\right)\times 5=6
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara -2,2 nā te kore tautuhi i te whakawehenga mā te kore. Me whakarea ngā taha e rua o te whārite ki te \left(x-2\right)\left(x+2\right), arā, te tauraro pātahi he tino iti rawa te kitea o x+2,x-2,x^{2}-4.
2x-4+\left(x+2\right)\times 5=6
Whakamahia te āhuatanga tohatoha hei whakarea te x-2 ki te 2.
2x-4+5x+10=6
Whakamahia te āhuatanga tohatoha hei whakarea te x+2 ki te 5.
7x-4+10=6
Pahekotia te 2x me 5x, ka 7x.
7x+6=6
Tāpirihia te -4 ki te 10, ka 6.
7x=6-6
Tangohia te 6 mai i ngā taha e rua.
7x=0
Tangohia te 6 i te 6, ka 0.
x=0
He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te 7 e ōrite ki 0, me ōrite pū te x ki 0.
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