Whakaoti mō y, z, a
a=30
Tohaina
Kua tāruatia ki te papatopenga
-y=6291-19
Whakaarohia te whārite tuatahi. Tangohia te 19 mai i ngā taha e rua.
-y=6272
Tangohia te 19 i te 6291, ka 6272.
y=-6272
Whakawehea ngā taha e rua ki te -1.
y=-6272 z=30 a=30
Kua oti te pūnaha te whakatau.
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{ x } ^ { 2 } - 4 x - 5 = 0
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