Whakaoti mō x
x=-\frac{1}{2}=-0.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x+5-3x=4
Tangohia te 3x mai i ngā taha e rua.
2x+5=4
Pahekotia te 5x me -3x, ka 2x.
2x=4-5
Tangohia te 5 mai i ngā taha e rua.
2x=-1
Tangohia te 5 i te 4, ka -1.
x=\frac{-1}{2}
Whakawehea ngā taha e rua ki te 2.
x=-\frac{1}{2}
Ka taea te hautanga \frac{-1}{2} te tuhi anō ko -\frac{1}{2} mā te tango i te tohu tōraro.
Ngā Tauira
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{ 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]
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Whakarerekētanga
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