Whakaoti mō x
x=-6.25
Graph
Tohaina
Kua tāruatia ki te papatopenga
0.8x+5=0
Whakareatia te 2 ki te 0.4, ka 0.8.
0.8x=-5
Tangohia te 5 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-5}{0.8}
Whakawehea ngā taha e rua ki te 0.8.
x=\frac{-50}{8}
Whakarohaina te \frac{-5}{0.8} mā te whakarea i te taurunga me te tauraro ki te 10.
x=-\frac{25}{4}
Whakahekea te hautanga \frac{-50}{8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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Poukapa
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
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