Whakaoti mō x
x=21
Graph
Tohaina
Kua tāruatia ki te papatopenga
0x^{2}+10x-210=0
Whakareatia te 0 ki te 1, ka 0.
0+10x-210=0
Ko te tau i whakarea ki te kore ka hua ko te kore.
-210+10x=0
Tangohia te 210 i te 0, ka -210.
10x=210
Me tāpiri te 210 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
x=\frac{210}{10}
Whakawehea ngā taha e rua ki te 10.
x=21
Whakawehea te 210 ki te 10, kia riro ko 21.
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