Combining Like Terms in Algebra

What must be the same for terms to be considered like terms?

• The coefficients

• The variable sets

• The signs

• The constants

When combining like terms, what do you do with the coefficients?

• Multiply them

• Divide them

• Add or subtract them

• Ignore them

Why can't you add 5y^4 and 5y^3?

• They have different constants

• They have different variable sets

• They have different coefficients

• They have different signs

In the expression -2xy - 4xy, what is the result?

• -6xy

• 2xy

• -2xy

• 6xy

How do you simplify 7m - (-8m) + 9m?

• 8m

• 24m

• 0m

• 18m

What is the simplified form of 3yac - 2ac + 6acy?

• 6acy - 3yac

• 1yac + 6acy

• 3yac + 4acy

• 9acy - 2ac

What is the result of combining x^4y + 3x^4y + 2x^4y?

• 6x^4y

• 5x^4y

• 3x^4y

• 4x^4y

How do you simplify x^2y - 3yx + 2yx^2 - 2xy + yx?

• 3x^2y - 4xy

• 3x^2y - 4y

• 3x^2y - 4yx

• 3x^2y - 4x

What happens when you add a number to its opposite?

• It becomes negative

• It remains the same

• It doubles

• It becomes zero

What is the perimeter of a triangular display case with sides x+1, x^2, and x^2+1 when x=2?

• 14 feet

• 16 feet

• 12 feet

• 10 feet