How do you simplify a trigonometric function by factoring

The video tutorial explains a common confusion in solving problems by factoring quadratic expressions. It begins with an introduction to the problem, followed by a detailed explanation of the factoring process using a quadratic example. The tutorial emphasizes the importance of remembering factoring techniques and demonstrates the substitution of variables in the expression, specifically replacing X with cosine of X.

What is the expression X^2 + 2X + 1 an example of?

• A quadratic equation

• A differential equation

• A linear equation

• A cubic equation

Why is factoring an important skill in algebra?

• It is only used in calculus

• It is not necessary for solving equations

• It simplifies complex expressions

• It helps in solving linear equations

How is the expression X^2 + 2X + 1 factored?

• (X - 1)^2

• (X + 1)^2

• (X + 2)^2

• (X + 1)(X - 1)

What does the instructor replace X with in the expression?

• Tangent of X

• Sine of X

• Secant of X

• Cosine of X

What should students do after watching the video?

• Forget about factoring

• Move on to the next topic

• Review the material

• Ignore the material