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anonymous
 one year ago
Please help
Let f(x)=2x^2+x3 and g(x)=x1.
Perform the indicated operation, then find the domain.
(Fg)(x)
A. X^24; domain: positive real numbers
B. 2x^24; domain: all real numbers
C. X^24; domain: all real numbers
D. 2x^22; domain: all real numbers
anonymous
 one year ago
Please help Let f(x)=2x^2+x3 and g(x)=x1. Perform the indicated operation, then find the domain. (Fg)(x) A. X^24; domain: positive real numbers B. 2x^24; domain: all real numbers C. X^24; domain: all real numbers D. 2x^22; domain: all real numbers

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@mathmath333 @mathmate

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0Can you do the (Fg)(x) part?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No:/, that's why I posted the question on here @mathmate

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0(fg)(x) = f(x)g(x) so you would subtract the polynomial g(x) from f(x).

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0In case of need, you can use the following link to help you, it is easy to read and full of examples: http://www.purplemath.com/modules/polyadd2.htm

mathmate
 one year ago
Best ResponseYou've already chosen the best response.0gtg. two more things that will help you: 1. Sum and difference of polynomials are polynomials. 2. All polynomials have a domain of real numbers, i.e. \((\infty,\infty)\)
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