Whakaoti mō a
a=-\frac{1}{2}=-0.5
Tohaina
Kua tāruatia ki te papatopenga
2a+1=0
Pahekotia te a me a, ka 2a.
2a=-1
Tangohia te 1 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
a=\frac{-1}{2}
Whakawehea ngā taha e rua ki te 2.
a=-\frac{1}{2}
Ka taea te hautanga \frac{-1}{2} te tuhi anō ko -\frac{1}{2} mā te tango i te tohu tōraro.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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