Question 111988


{{{f(x)=x^2-5x+6}}} Start with the given function.



{{{f(-2)=(-2)^2-5(-2)+6}}} Plug in {{{x=-2}}}. In other words, replace each x with -2.



{{{f(-2)=(4)-5(-2)+6}}} Evaluate {{{(-2)^2}}} to get 4.



{{{f(-2)=(4)+10+6}}} Multiply -5 and -2 to get  10



{{{f(-2)=20}}} Now combine like terms



-----------Now let's evaluate another value---------



{{{f(x)=x^2-5x+6}}} Start with the given function.



{{{f(-3)=(-3)^2-5(-3)+6}}} Plug in {{{x=-3}}}. In other words, replace each x with -3.



{{{f(-3)=(9)-5(-3)+6}}} Evaluate {{{(-3)^2}}} to get 9.



{{{f(-3)=(9)+15+6}}} Multiply -5 and -3 to get  15



{{{f(-3)=30}}} Now combine like terms