Rational Expressions and Simplification

The video tutorial explains how to multiply rational expressions by focusing on simplifying them before multiplication. It emphasizes the importance of prime factorization to identify common factors that simplify to one. Two examples are provided to demonstrate the process, starting with basic monomials and advancing to more complex expressions. The tutorial concludes with a preview of handling binomials and trinomials in future lessons.

What is the first step in multiplying rational expressions?

• Divide the numerators by the denominators.

• Add the numerators and denominators.

• Multiply the numerators and denominators.

• Subtract the numerators from the denominators.

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CCSS.HSA.APR.D.7

Why is it easier to simplify before multiplying rational expressions?

• It reduces the number of steps.

• It avoids complex calculations later.

• It ensures the result is always a whole number.

• It makes the expressions larger.

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CCSS.4.OA.B.4

What is the prime factorization of 9?

• 2 x 4

• 9 x 1

• 3 x 3

• 1 x 9

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CCSS.6.EE.A.2B

In the expression 9x^2y, how many factors of x are there?

• Three

• One

• Two

• None

What is the simplified form of the expression 6x/1?

• 6x

• 1

• x

• 6

What is the prime factorization of 27?

• 27 x 1

• 9 x 3

• 3 x 3 x 3

• 3 x 9

How many factors of n are there in the expression mn^2?

• None

• One

• Two

• Three

What is the simplified form of the expression 2MY?

• 2MY

• Y

• MY

• 2M

Which factor simplifies to 1 in the expression 3/3?

• 3

• None

• 1

• 0

What will be the next topic after simplifying monomials?

• Subtracting fractions

• Adding fractions

• Binomials and trinomials

• Dividing fractions