Whakaoti i te x(2x-7)+4(2x-7)=2x^2-8x+1

$$x ( 2 x - 7 ) + 4 ( 2 x - 7 ) = 2 x ^ { 2 } - 8 x + 1$$

Whakaoti mō x

$$x = \frac{29}{9} = 3\frac{2}{9} \approx 3.222222222$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakamahia te āhuatanga tohatoha hei whakarea te x ki te 2x-7.

$$2x^{2}-7x+4\left(2x-7\right)=2x^{2}-8x+1$$

Whakamahia te āhuatanga tohatoha hei whakarea te 4 ki te 2x-7.

$$2x^{2}-7x+8x-28=2x^{2}-8x+1$$

Pahekotia te -7x me 8x, ka x.

$$2x^{2}+x-28=2x^{2}-8x+1$$

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

$$2x^{2}+x-28-2x^{2}=-8x+1$$

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

$$x-28=-8x+1$$

Me tāpiri te 8x ki ngā taha e rua.

$$x-28+8x=1$$

Pahekotia te x me 8x, ka 9x.

$$9x-28=1$$

Me tāpiri te 28 ki ngā taha e rua.

$$9x=1+28$$

Tāpirihia te 1 ki te 28, ka 29.

$$9x=29$$

Whakawehea ngā taha e rua ki te 9.

$$x=\frac{29}{9}$$