#17. How to Find the Sum(f + g), Difference(f  g), Product(fg), and Quotient(f/g) of Functions  Summary and Q&A
TL;DR
Learn how to perform addition, subtraction, multiplication, and division on functions, and determine the domain of each operation.
Questions & Answers
Q: How do you find f plus g?
To find f plus g, add f(x) and g(x) together. The domain for f plus g is all real numbers.
Q: What is the formula for f minus g?
The formula for f minus g is f(x) minus g(x). Subtract g(x) from f(x) to find the result. The domain for f minus g is all real numbers.
Q: How do you calculate f times g?
Multiply f(x) and g(x) together to find f times g. The result will be 5x^3 + 35x^2. The domain for f times g is all real numbers.
Q: What is the domain for f over g?
The domain for f over g is all real numbers except for x = 0. The function is not defined at x = 0 due to division by zero.
Summary & Key Takeaways

Addition: To find f plus g, simply add the two functions f(x) and g(x) together.

Subtraction: To find f minus g, subtract g(x) from f(x).

Multiplication: To find f times g, multiply f(x) and g(x) together.

Division: To find f over g, divide f(x) by g(x).

The domain for all operations is all real numbers, except for division where x cannot equal zero.