Question 90289
{{{f(x)=5x^2-3x+1}}} Start with the given polynomial



{{{f(-2)=5(-2)^2-3(-2)+1}}} Plug in {{{x=-2}}}



{{{f(-2)=5(4)-3(-2)+1}}} Raise -2 to the second power to get 4



{{{f(-2)=20-3(-2)+1}}} Multiply 5 by 4 to get 20



{{{f(-2)=20--6+1}}} Multiply 3 by -2 to get -6



{{{f(-2)=20+6+1}}} Negate any negatives



{{{f(-2)=27}}} Now combine like terms



So {{{f(-2)=27}}}