Whakaoti mō x
x\leq \frac{1}{3}
Graph
Tohaina
Kua tāruatia ki te papatopenga
-15x\geq -5
Tangohia te 5 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x\leq \frac{-5}{-15}
Whakawehea ngā taha e rua ki te -15. I te mea he tōraro a -15, ka huri te ahunga koreōrite.
x\leq \frac{1}{3}
Whakahekea te hautanga \frac{-5}{-15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -5.
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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