[tex] \leadsto f( \rm x) = - {x}^{2} - 6x + 16[/tex]
[tex] \\ \\ [/tex]
[tex] \leadsto f( \rm x) = - {x}^{2} - 8x +6x + 16[/tex]
[tex] \\ \\ [/tex]
[tex] \leadsto f( \rm x) = - {x}(x + 8) +2(3x +8) \\ [/tex]
[tex] \\ \\ [/tex]
[tex] \leadsto f( \rm x) = {( - x + 2)}(x + 8) \\ [/tex]
[tex] \\ \\ [/tex]
[tex] \leadsto f( \rm x) = - {(x + 8)(x + 2)} \\ [/tex]
