Question 1182386

Given 
{{{F(x) = x^2 + 3x-6}}}

 evaluate

{{{F(-3)}}}=>{{{x=-3}}}

{{{F(-3) = (-3)^2 + 3(-3) -6}}}

{{{F(-3) = 9 - 9 -6}}}

{{{F(-3) =  -6}}}