Question 120523
I assume you meant 5x^2, but if not, repost it...
{{{f(x)=5x^2-3x+1}}}
To find f(-2), just plug in -2 everywhere you see x and simplify:
{{{f(-2)=5*(-2^2)-3*(-2)+1}}}
{{{f(-2)=5*4-3*(-2)+1}}}
{{{f(-2)=20+6+1}}}
{{{highlight(f(-2)=27)}}}
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Good Luck,
tutor_paul@yahoo.com