Whakaoti mō a
a=-2^{1-c}
Whakaoti mō c
c=\log_{2}\left(-\frac{2}{a}\right)
a<0
Tohaina
Kua tāruatia ki te papatopenga
a\times 2^{c}=1-3
Tangohia te 3 mai i ngā taha e rua.
a\times 2^{c}=-2
Tangohia te 3 i te 1, ka -2.
2^{c}a=-2
He hanga arowhānui tō te whārite.
\frac{2^{c}a}{2^{c}}=-\frac{2}{2^{c}}
Whakawehea ngā taha e rua ki te 2^{c}.
a=-\frac{2}{2^{c}}
Mā te whakawehe ki te 2^{c} ka wetekia te whakareanga ki te 2^{c}.
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