Verified answer

Ответ:

[tex]y = 2 {x}^{2} - 8x[/tex]

[tex]a = 2.b = - 8[/tex]

[tex]x = - \frac{ - 8}{2 \times 2} [/tex]

[tex]x = 2[/tex]

[tex]y = 2 {x}^{2} - 8x.x = 2 [/tex]

[tex]y = - 8[/tex]

[tex](2. - 8)[/tex]