Whakaoti mō x
x=2.5
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{2}+2x-5=x^{2}
Whakareatia te 0.5 ki te 2, ka 1.
x^{2}+2x-5-x^{2}=0
Tangohia te x^{2} mai i ngā taha e rua.
2x-5=0
Pahekotia te x^{2} me -x^{2}, ka 0.
2x=5
Me tāpiri te 5 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{5}{2}
Whakawehea ngā taha e rua ki te 2.
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