Question 402879
{{{f(x)=-2x^2 + x -4}}} Start with the given equation.



{{{f(-9)=-2(-9)^2 + -9 -4}}} Plug in {{{x=-9}}}.



{{{f(-9)=-2(81)-9-4}}} Square {{{-9}}} to get {{{81}}}.



{{{f(-9)=-162-9-4}}} Multiply {{{-2}}} and {{{81}}} to get {{{-162}}}.



{{{f(-9)=-175}}} Combine like terms.