Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
\sqrt{4-2x}=0
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-2x+4=0
Pūruatia ngā taha e rua o te whārite.
-2x+4-4=-4
Me tango 4 mai i ngā taha e rua o te whārite.
-2x=-4
Mā te tango i te 4 i a ia ake anō ka toe ko te 0.
\frac{-2x}{-2}=-\frac{4}{-2}
Whakawehea ngā taha e rua ki te -2.
x=-\frac{4}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
x=2
Whakawehe -4 ki te -2.
Ngā Tauira
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