Whakaoti mō Z, a, b, c
c=-2
Tohaina
Kua tāruatia ki te papatopenga
Z=\frac{1}{4}\left(-8\right)
Whakaarohia te whārite tuatahi. Me whakarea ngā taha e rua ki te -8.
Z=-2
Whakareatia te \frac{1}{4} ki te -8, ka -2.
a=-2
Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
b=-2
Whakaarohia te whārite tuatoru. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
c=-2
Whakaarohia te whārite tuawhā. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
Z=-2 a=-2 b=-2 c=-2
Kua oti te pūnaha te whakatau.
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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