Adding two functions together with a multiplier

The video tutorial explains how to replace function names with their actual functions in an expression. It demonstrates the process of simplifying expressions by applying the distributive property and combining like terms. The instructor clarifies the steps involved in replacing functions and solving the given problem, ensuring the viewer understands the equivalence of the expressions.

What is the final simplified expression after combining like terms?

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Explain how H(X) is replaced in the given problem.

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