The video tutorial explains how to solve a more complex mathematical problem involving expressions. The instructor guides through evaluating an expression by substituting a variable, emphasizing the use of parentheses and the distributive property. The process is similar to simpler problems but requires careful application of mathematical rules to reach the final result.

What is the main challenge when evaluating expressions compared to simple value substitution?

• Expressions require more complex arithmetic operations.

• Expressions involve substituting multiple values.

• Expressions can be more difficult because they involve substituting another expression.

• Expressions need to be evaluated in a specific order.

Why is it important to use parentheses when substituting expressions into functions?

• To avoid confusion with other variables.

• To indicate that the expression is a placeholder.

• To make the expression look more organized.

• To ensure the expression is evaluated first.

What is the expression that replaces X in the function?

• 2X + 1

• 3X - 1

• X + 3

• 4X - 2

What property is applied to simplify the function after substitution?

• Associative Property

• Commutative Property

• Distributive Property

• Identity Property

What is the final simplified expression of the function after applying the distributive property?

• 6X - 3

• 7X - 4

• 5X - 2

• 4X + 1