Let $f(x) = 4x - 7$, $g(x) = (x + 1)^2$, and $s(x) = f(x) + g(x)$. What is $s(3)$?
s(x)=(4x−7)+(x+1)2=x2+6x−6
s(3)=32+6(3)−6=21
Thanks Cubey
+195 
