Multiplying rational expressions

The video tutorial explains how to handle rational expressions, focusing on common mistakes students make, such as incorrectly canceling terms across addition and subtraction. It emphasizes the importance of factoring trinomials to simplify expressions and demonstrates the correct method to multiply rational expressions by factoring and canceling terms across multiplication. The tutorial concludes with a final solution, illustrating the process of multiplying rational expressions.

What is a common mistake students make when simplifying rational expressions?

• Forgetting to factor the expression

• Canceling terms across addition and subtraction

• Multiplying terms incorrectly

• Using the wrong formula

What is the process of rewriting an expression as a product called?

• Dividing

• Expanding

• Factoring

• Simplifying

Which pair of numbers multiply to -10 and add to -5?

• 5 and -2

• -5 and 2

• -3 and 3

• 10 and -1

How can you write an expression as a fraction?

• By putting it over 1

• By adding 1 to it

• By multiplying it by 2

• By subtracting 1 from it

What is the final simplified form of the expression?

• X + 2 * X + 7

• X + 5 * X + 7

• X + 2 * X + 3

• X + 3 * X + 5