Math tutorial for solving rational equations

The video tutorial covers the concept of the Least Common Denominator (LCD) with examples, including common mistakes students make. It explains how to factor expressions and apply the distributive property in mathematical problems. The video concludes with school announcements about a basketball game and a talent show.

What is the correct LCD of the numbers three and nine?

• 9

• 27

• 6

• 18

When factoring the expression 2X + 8, what is the correct factorization?

• 2 * (X + 4)

• X * (2 + 4)

• 4 * (X + 2)

• 2 * (X + 8)

What happens to the expression X + 4 when it is divided out in the equation?

• It doubles

• It remains unchanged

• It is eliminated

• It becomes zero

What is the final expression obtained after applying the distributive property in the given problem?

• 4X + 28 - 4X - 16 = 2X + 20

• 4X + 28 - 4X + 16 = 2X + 30

• 4X + 28 + 4X - 16 = 2X + 30

• 4X + 28 - 4X - 16 = 2X + 30

Where can tickets for the talent show be purchased?

• Only at the door

• From Mr. Crawford and at the door

• Only from Mr. Crawford

• Online