SOLUTION: Suppose that the functions F and G are defined for all real numbers as follows. F(x)=3x^2 G(x)=2x Write the expressions for (F+G)(x),(F*G)(x) and and evaluate (F-G)(-1).

Algebra ->  Expressions-with-variables -> SOLUTION: Suppose that the functions F and G are defined for all real numbers as follows. F(x)=3x^2 G(x)=2x Write the expressions for (F+G)(x),(F*G)(x) and and evaluate (F-G)(-1).       Log On


   

Question 1110978: Suppose that the functions F and G are defined for all real numbers as follows.
F(x)=3x^2
G(x)=2x
Write the expressions for (F+G)(x),(F*G)(x) and and evaluate (F-G)(-1).





Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
%28F%2BG%29%28x%29=F%28x%29%2BG%28x%29

%28F%2AG%29%28x%29=F%28x%29G%28x%29

%28F-G%29%28x%29=F%28x%29-G%28x%29

Just make the substitutions and simplify.