Whakaoti mō x
x=-13
Graph
Tohaina
Kua tāruatia ki te papatopenga
-x-20+5x=-72
Me tāpiri te 5x ki ngā taha e rua.
-x+5x=-72+20
Me tāpiri te 20 ki ngā taha e rua.
-x+5x=-52
Tāpirihia te -72 ki te 20, ka -52.
4x=-52
Pahekotia te -x me 5x, ka 4x.
x=\frac{-52}{4}
Whakawehea ngā taha e rua ki te 4.
x=-13
Whakawehea te -52 ki te 4, kia riro ko -13.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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Whakarerekētanga
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