Whakaoti mō x, y, z
z=1
Tohaina
Kua tāruatia ki te papatopenga
3x+x^{2}=x^{2}+2x+1
Whakaarohia te whārite tuatahi. Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(x+1\right)^{2}.
3x+x^{2}-x^{2}=2x+1
Tangohia te x^{2} mai i ngā taha e rua.
3x=2x+1
Pahekotia te x^{2} me -x^{2}, ka 0.
3x-2x=1
Tangohia te 2x mai i ngā taha e rua.
x=1
Pahekotia te 3x me -2x, ka x.
x=1 y=1 z=1
Kua oti te pūnaha te whakatau.
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