Combining Terms in Expressions

The video tutorial explains how to find the perimeter of a triangle by adding up all three sides. It involves writing a long expression with the side values, combining like terms, and calculating the constants to arrive at the final perimeter expression of 14x + 7.

What is the first step in finding the perimeter of a triangle?

• Adding all the sides together

• Subtracting the sides

• Multiplying the sides

• Dividing the sides

How do you express the perimeter of a triangle?

• As an addition problem

• As a multiplication problem

• As a subtraction problem

• As a division problem

What are the sides of the triangle in the given problem?

• 5x, 3x, 6x

• 5x, 3x + 7, 6x

• 5x - 7, 3x, 6x + 14

• 5x + 7, 3x, 6x - 14

What is the first X term in the expression?

• 7x

• 6x

• 5x

• 3x

What is the second X term in the expression?

• 6x

• 3x

• 5x

• 7x

What is the third X term in the expression?

• 7x

• 6x

• 5x

• 3x

What is the first constant term in the expression?

• 7

• -14

• -7

• 14

What is the second constant term in the expression?

• 7

• -14

• -7

• 14

What is the first step in combining like terms?

• Boxing the X terms with their signs

• Combining constants first

• Ignoring the signs

• Adding all terms together

Which terms are combined first in the expression?

• Z terms

• Y terms

• X terms

• Constant terms