Whakaoti mō x
x<\frac{2}{509}
Graph
Tohaina
Kua tāruatia ki te papatopenga
513x-7-4x<-5
Tangohia te 4x mai i ngā taha e rua.
509x-7<-5
Pahekotia te 513x me -4x, ka 509x.
509x<-5+7
Me tāpiri te 7 ki ngā taha e rua.
509x<2
Tāpirihia te -5 ki te 7, ka 2.
x<\frac{2}{509}
Whakawehea ngā taha e rua ki te 509. I te mea he tōrunga te 509, kāore e huri te ahunga koreōrite.
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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