SOLUTION: Let f(x)= x^2+5x+3 and g(x)=x+2 find (fog)(x) (gof)(x) (fog)(2) and (gof)(-2)

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Question 474597: Let f(x)= x^2+5x+3 and g(x)=x+2 find (fog)(x) (gof)(x) (fog)(2) and (gof)(-2)
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29=+x%5E2%2B5x%2B3+
g%28x%29=x%2B2
(fog)(x)=
(gof)(x)=g%28f%28x%29%29=f%28x%29%2B2=x%5E2%2B5x%2B3%2B2=x%5E2%2B5x%2B5
(fog)(2)=2%5E2%2B9%2A2%2B17=39
(gof)(-2)=%28-2%29%5E2%2B5%2A%28-2%29%2B5=-1