Respuesta :

[tex] \leadsto \tt y=-2(x+1)(x-2)[/tex]

[tex] \\ \\ [/tex]

[tex] \leadsto \tt y=-2(x {}^{2} - 2x + x - 2)[/tex]

[tex] \\ \\ [/tex]

[tex] \leadsto \tt y=-2(x {}^{2} - x - 2)[/tex]

[tex] \\ \\ [/tex]

[tex] \leadsto \tt y=-2x {}^{2} + x + 2[/tex]