Whakaoti mō x
x=11
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(x+4\right)\times 4-\left(x+1\right)\times 5=0
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara -4,-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+4\right), arā, te tauraro pātahi he tino iti rawa te kitea o x+1,x+4.
4x+16-\left(x+1\right)\times 5=0
Whakamahia te āhuatanga tohatoha hei whakarea te x+4 ki te 4.
4x+16-\left(5x+5\right)=0
Whakamahia te āhuatanga tohatoha hei whakarea te x+1 ki te 5.
4x+16-5x-5=0
Hei kimi i te tauaro o 5x+5, kimihia te tauaro o ia taurangi.
-x+16-5=0
Pahekotia te 4x me -5x, ka -x.
-x+11=0
Tangohia te 5 i te 16, ka 11.
-x=-11
Tangohia te 11 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=11
Me whakarea ngā taha e rua ki te -1.
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