How to factor a trinomial of a trig identity

The video tutorial covers factoring trinomials using substitution. It begins with a review of basic factoring techniques and introduces the substitution method to simplify complex expressions. The instructor demonstrates how to apply substitution to factor expressions and verifies the results using the FOIL method. The tutorial concludes with a summary of the substitution technique's effectiveness in solving factoring problems.

What is the product of two numbers that add up to 2 in the expression X^2 + 2X + 1?

• 3

• 4

• 2

• 1

What is the main advantage of using the substitution method in factoring?

• It simplifies the expression for easier factoring.

• It changes the expression completely.

• It makes the expression more complex.

• It eliminates the need for factoring.

In the substitution method, what is the first step to simplify a complex expression?

• Substitute values to make the expression simpler.

• Multiply all terms by a constant.

• Add a constant to all terms.

• Divide all terms by a constant.

When applying the substitution method, what should you do after factoring the simplified expression?

• Multiply the factors together.

• Leave it as it is.

• Add a constant to the factors.

• Substitute back the original values.

How do you verify the factorization after using the substitution method?

• By adding the factors together.

• By dividing the factors by a constant.

• By checking if the product of the factors equals the original expression.

• By multiplying the factors by a constant.