Whakaoti mō x
x=2
Graph
Tohaina
Kua tāruatia ki te papatopenga
3x^{2}+3x-2x-2=3x^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 3x ki te x+1.
3x^{2}+x-2=3x^{2}
Pahekotia te 3x me -2x, ka x.
3x^{2}+x-2-3x^{2}=0
Tangohia te 3x^{2} mai i ngā taha e rua.
x-2=0
Pahekotia te 3x^{2} me -3x^{2}, ka 0.
x=2
Me tāpiri te 2 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
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