Whakaoti mō x
x=-\frac{4}{5}=-0.8
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x-4=10x
Tangohia te 6 i te 2, ka -4.
5x-4-10x=0
Tangohia te 10x mai i ngā taha e rua.
-5x-4=0
Pahekotia te 5x me -10x, ka -5x.
-5x=4
Me tāpiri te 4 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{4}{-5}
Whakawehea ngā taha e rua ki te -5.
x=-\frac{4}{5}
Ka taea te hautanga \frac{4}{-5} te tuhi anō ko -\frac{4}{5} mā te tango i te tohu tōraro.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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whārite paerangi
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Poukapa
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Whakarerekētanga
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Ngā Tepe
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