Question 216202
{{{f(x)=5x^2-2x}}} Start with the given equation.



{{{f(-3)=5(-3)^2-2(-3)}}} Plug in {{{x=-3}}}.



{{{f(-3)=5(9)-2(-3)}}} Square {{{-3}}} to get {{{9}}}.



{{{f(-3)=45-2(-3)}}} Multiply {{{5}}} and {{{9}}} to get {{{45}}}.



{{{f(-3)=45+6}}} Multiply {{{-2}}} and {{{-3}}} to get {{{6}}}.



{{{f(-3)=51}}} Combine like terms.