Whakaoti mō n (complex solution)
n\in \mathrm{C}
Whakaoti mō n
n\in \mathrm{R}
Tohaina
Kua tāruatia ki te papatopenga
7n-28-7\left(n-2\right)=-14
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te n-4.
7n-28-7n+14=-14
Whakamahia te āhuatanga tohatoha hei whakarea te -7 ki te n-2.
-28+14=-14
Pahekotia te 7n me -7n, ka 0.
-14=-14
Tāpirihia te -28 ki te 14, ka -14.
\text{true}
Whakatauritea te -14 me te -14.
n\in \mathrm{C}
He pono tēnei mō tētahi n ahakoa.
7n-28-7\left(n-2\right)=-14
Whakamahia te āhuatanga tohatoha hei whakarea te 7 ki te n-4.
7n-28-7n+14=-14
Whakamahia te āhuatanga tohatoha hei whakarea te -7 ki te n-2.
-28+14=-14
Pahekotia te 7n me -7n, ka 0.
-14=-14
Tāpirihia te -28 ki te 14, ka -14.
\text{true}
Whakatauritea te -14 me te -14.
n\in \mathrm{R}
He pono tēnei mō tētahi n ahakoa.
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