Whakaoti mō x
x = -\frac{5}{2} = -2\frac{1}{2} = -2.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
4x=-5\times 2
Me whakarea ngā taha e rua ki te 2.
4x=-10
Whakareatia te -5 ki te 2, ka -10.
x=\frac{-10}{4}
Whakawehea ngā taha e rua ki te 4.
x=-\frac{5}{2}
Whakahekea te hautanga \frac{-10}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
whārite Simultaneous
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Whakarerekētanga
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