Posted by Sira on Sunday, September 30, 2012 at 10:26pm.
How do I find (a) f*g (b) g*f (c) f*f of these problems?
If you can, please show me step by step ^___^ thank you
1)f(x)=x^2
2) f(x)=3x+5

Math  Steve, Sunday, September 30, 2012 at 11:57pm
I assume you mean g(x) = 3x+5
(f*g)(x) = f(x)*g(x) = (x^2)*(3x+2) = 3x^3 + 2x^2
similarly for g*f and f*f