Whakaoti mō x
x=0
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{2}+4x+4=x^{2}+4
Whakamahia te ture huarua \left(a+b\right)^{2}=a^{2}+2ab+b^{2} hei whakaroha \left(x+2\right)^{2}.
x^{2}+4x+4-x^{2}=4
Tangohia te x^{2} mai i ngā taha e rua.
4x+4=4
Pahekotia te x^{2} me -x^{2}, ka 0.
4x=4-4
Tangohia te 4 mai i ngā taha e rua.
4x=0
Tangohia te 4 i te 4, ka 0.
x=0
He ōrite te hua o ngā tau e rua ki 0 ina 0 tētahi o rāua te iti rawa. Tātemea kāore te 4 e ōrite ki 0, me ōrite pū te x ki 0.
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