| ( x + 4 ) ( x - 1 ) - x ^ { 2 } | = 2 ( 2
Whakaoti mō x
x=0
x = \frac{8}{3} = 2\frac{2}{3} \approx 2.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
|x^{2}+3x-4-x^{2}|=2\times 2
Whakamahia te āhuatanga tuaritanga hei whakarea te x+4 ki te x-1 ka whakakotahi i ngā kupu rite.
|3x-4|=2\times 2
Pahekotia te x^{2} me -x^{2}, ka 0.
|3x-4|=4
Whakareatia te 2 ki te 2, ka 4.
3x-4=4 3x-4=-4
Whakamahia te tautuhinga o te uara pū.
3x=8 3x=0
Me tāpiri 4 ki ngā taha e rua o te whārite.
x=\frac{8}{3} x=0
Whakawehea ngā taha e rua ki te 3.
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