Algebra Like terms

What is the term for the letter representing an unknown value in an algebraic expression?

• Coefficient

• Variable

• Constant

• Exponent

What must be true for two terms to be considered "like terms" and combined?

• They must have the same coefficient.

• They must have the same variable and exponent.

• They must be constants.

• They must be separated by a plus sign.

When combining like terms, which parts of the terms are typically changed?

• Only the variables.

• Only the exponents.

• The coefficients and constants.

• The variables and exponents.

Are you enjoying the video lesson?

• Yes

• No

Simplify the expression: 3x^2 + 2y + 2x^2 + 4y + 1.

• 5x^2 + 6y + 1

• 5x^2 + 6y

• 7x^2 + 6y + 1

• 5x^2 + 2y + 4y + 1

Simplify the expression: -3x - 1 + 2x.

• -x - 1

• x - 1

• -5x - 1

• -x + 1