Aromātai
4
Tauwehe
2^{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{2\left(-2-x\right)}{-1-x}+\frac{2x}{x+1}
Tāpirihia te -2 ki te 1, ka -1.
\frac{-2\left(-2-x\right)}{x+1}+\frac{2x}{x+1}
Hei tāpiri, hei tango kīanga rānei, me whakaroha ērā kia rite ā rātou tauraro. Ko te taurea pātahi iti rawa o -1-x me x+1 ko x+1. Whakareatia \frac{2\left(-2-x\right)}{-1-x} ki te \frac{-1}{-1}.
\frac{-2\left(-2-x\right)+2x}{x+1}
Tā te mea he rite te tauraro o \frac{-2\left(-2-x\right)}{x+1} me \frac{2x}{x+1}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
\frac{4+2x+2x}{x+1}
Mahia ngā whakarea i roto o -2\left(-2-x\right)+2x.
\frac{4+4x}{x+1}
Whakakotahitia ngā kupu rite i 4+2x+2x.
\frac{4\left(x+1\right)}{x+1}
Me whakatauwehe ngā kīanga kāore anō i whakatauwehea i roto o \frac{4+4x}{x+1}.
4
Me whakakore tahi te x+1 i te taurunga me te tauraro.
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