Whakaoti i te 2x^3+2x^2-5x+1=2x^3+2x^2-4x

$$2 x ^ { 3 } + 2 x ^ { 2 } - 5 x + 1 = 2 x ^ { 3 } + 2 x ^ { 2 } - 4 x$$

Whakaoti mō x

$$x=1$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 2x^{3} mai i ngā taha e rua.

$$2x^{3}+2x^{2}-5x+1-2x^{3}=2x^{2}-4x$$

Pahekotia te 2x^{3} me -2x^{3}, ka 0.

$$2x^{2}-5x+1=2x^{2}-4x$$

Tangohia te 2x^{2} mai i ngā taha e rua.

$$2x^{2}-5x+1-2x^{2}=-4x$$

Pahekotia te 2x^{2} me -2x^{2}, ka 0.

$$-5x+1=-4x$$

Me tāpiri te 4x ki ngā taha e rua.

$$-5x+1+4x=0$$

Pahekotia te -5x me 4x, ka -x.

$$-x+1=0$$

Tangohia te 1 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.

$$-x=-1$$

Me whakarea ngā taha e rua ki te -1.

$$x=1$$