Multiply a quadratic equation by a square root function to determine domain

The video tutorial explains how to multiply two functions, F(x) and G(x), and determine the domain of their product. F(x) is defined as X^2 + 1, a quadratic function with a domain of all real numbers, while G(x) is defined as sqrt(X - 2), a radical function with a domain of values greater than or equal to 2. The tutorial emphasizes that the domain of the product of two functions is the intersection of their individual domains. Therefore, the domain of the product function is from 2 to infinity, where both functions are defined.

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