SOLUTION: Suppose the functions are defined as follows f(x)= {{{ x^2+3 }}} g(x)= {{{ sqrt(x+2) }}} find the following (f*g)(2) (g*f)(2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Suppose the functions are defined as follows f(x)= {{{ x^2+3 }}} g(x)= {{{ sqrt(x+2) }}} find the following (f*g)(2) (g*f)(2)      Log On


   

Question 929532: Suppose the functions are defined as follows
f(x)= +x%5E2%2B3+
g(x)= +sqrt%28x%2B2%29+
find the following
(f*g)(2)
(g*f)(2)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29=++x%5E2%2B3+
g%28x%29=+sqrt%28x%2B2%29+
find the following
%28f%2Ag%29%28x%29=f%28x%29%2Ag%28x%29=%28x%5E2%2B3%29sqrt%28x%2B2%29
%28f%2Ag%29%282%29=%282%5E2%2B3%29sqrt%282%2B2%29
%28f%2Ag%29%282%29=%287%292
%28f%2Ag%29%282%29=14


%28g%2Af%29%282%29
since %28f%2Ag%29%282%29=%28g%2Af%29%282%29-commutative property-,then %28g%2Af%29%282%29=14