#1 ok
#2 ok
#3 Almost
x^2-9 = (x+3)(x-3)
divide by (x-3) and you are left with (x+3)
#4 ok
Can you check my work and tell me if I did anything wrong?
1. With the functions: f(x) = x^2 + 3x and g(x) = -3 + x what is f(x) + g(x)?
Answer: x^2 + 4x - 3
2. With the functions: f(x) = x + 4 and g(x) = x -3 what is (f*g)(x)?
Answer: x^2 + x - 12
3. With the functions: f(x) = x^2 - 9 and g(x) = x - 3 what is (f/g)(x)?
Answer:x - 3
4. With the functions: f(x) = a^2 - 2ab + b^2c and g(x) = -3b^2c + 6ab what is (f-g)(x)?
Answer: a^2 - 8ab + 4b^2c
2 answers
Thank you! (: