Whakaoti mō x
x=-\frac{1}{2}=-0.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x+4-5x=5
Tangohia te 5x mai i ngā taha e rua.
-2x+4=5
Pahekotia te 3x me -5x, ka -2x.
-2x=5-4
Tangohia te 4 mai i ngā taha e rua.
-2x=1
Tangohia te 4 i te 5, 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
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]
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Whakarerekētanga
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