Whakaoti mō y
y = -\frac{15}{2} = -7\frac{1}{2} = -7.5
Whakaoti mō x (complex solution)
x\in \mathrm{C}
y = -\frac{15}{2} = -7\frac{1}{2} = -7.5
Whakaoti mō x
x\in \mathrm{R}
y = -\frac{15}{2} = -7\frac{1}{2} = -7.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+5y-y=x-30
Tangohia te y mai i ngā taha e rua.
x+4y=x-30
Pahekotia te 5y me -y, ka 4y.
4y=x-30-x
Tangohia te x mai i ngā taha e rua.
4y=-30
Pahekotia te x me -x, ka 0.
y=\frac{-30}{4}
Whakawehea ngā taha e rua ki te 4.
y=-\frac{15}{2}
Whakahekea te hautanga \frac{-30}{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
Āhuahanga
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whārite paerangi
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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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Ngā Tepe
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