1. Let g(a)=a^3+5a^2 and f(a)=2a+4. Find g(3)+f(3). 2. Let g(x)=3x+1 and f(x)=x^3+3x^2. Find g(2)⋅f(2). 3. Let g(n)=n^2+5 and f(n)=3n+5. Find g(n)÷f(n). 4. Let f(x)=2x+4 and g(x)=4x-5. Find f(x)-g(x). 5. Let f(x)=3x-4 and g(x)=x^3+2x^2. Find (f∘g)(x).
1. Let g(a)=a^3+5a^2 and f(a)=2a+4. Find g(3)+f(3). 2. Let g(x)=3x+1 and f(x)=x^3+3x^2. Find g(2)⋅f(2). 3. Let g(n)=n^2+5 and f(n)=3n+5. Find g(n)÷f(n). 4. Let f(x)=2x+4 and g(x)=4x-5. Find f(x)-g(x). 5. Let f(x)=3x-4 and g(x)=x^3+2x^2. Find (f∘g)(x).
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.6: Multiplying Polynomials
Problem 47WE
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1. Let g(a)=a^3+5a^2 and f(a)=2a+4. Find g(3)+f(3).
2. Let g(x)=3x+1 and f(x)=x^3+3x^2. Find g(2)⋅f(2).
3. Let g(n)=n^2+5 and f(n)=3n+5. Find g(n)÷f(n).
4. Let f(x)=2x+4 and g(x)=4x-5. Find f(x)-g(x).
5. Let f(x)=3x-4 and g(x)=x^3+2x^2. Find (f∘g)(x).
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