Question 192192


{{{4x^2-5x+6}}} Start with the given expression.



{{{4(-3)^2-5(-3)+6}}} Plug in {{{x=-3}}}.



{{{4(9)-5(-3)+6}}} Square {{{-3}}} to get {{{9}}}.



{{{36-5(-3)+6}}} Multiply {{{4}}} and {{{9}}} to get {{{36}}}.



{{{36+15+6}}} Multiply {{{-5}}} and {{{-3}}} to get {{{15}}}.



{{{57}}} Combine like terms.



So {{{4x^2-5x+6=57}}} when {{{x=-3}}}