Whakaoti mō c
c = -\frac{105}{2} = -52\frac{1}{2} = -52.5
Tohaina
Kua tāruatia ki te papatopenga
5\times 2c-3\times 4c=105
Me whakarea ngā taha e rua o te whārite ki te 15, arā, te tauraro pātahi he tino iti rawa te kitea o 3,5.
10c-3\times 4c=105
Whakareatia te 5 ki te 2, ka 10.
10c-12c=105
Whakareatia te -3 ki te 4, ka -12.
-2c=105
Pahekotia te 10c me -12c, ka -2c.
c=\frac{105}{-2}
Whakawehea ngā taha e rua ki te -2.
c=-\frac{105}{2}
Ka taea te hautanga \frac{105}{-2} te tuhi anō ko -\frac{105}{2} mā te tango i te tohu tōraro.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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