Whakaoti mō j
j=\frac{B+8k-5i}{2}
Whakaoti mō B
B=2j-8k+5i
Tohaina
Kua tāruatia ki te papatopenga
5i+2j-8k=B
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
2j-8k=B-5i
Tangohia te 5i mai i ngā taha e rua.
2j=B-5i+8k
Me tāpiri te 8k ki ngā taha e rua.
2j=B+8k-5i
He hanga arowhānui tō te whārite.
\frac{2j}{2}=\frac{B+8k-5i}{2}
Whakawehea ngā taha e rua ki te 2.
j=\frac{B+8k-5i}{2}
Mā te whakawehe ki te 2 ka wetekia te whakareanga ki te 2.
j=\frac{B}{2}+4k-\frac{5}{2}i
Whakawehe B-5i+8k ki te 2.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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