Monomials (Adding & Subtracting)

When adding or subtracting monomials, what happens to the exponents?

• You add or subtract them from each other.

• The exponents stay the same.

Is x² a monomial?

• Yes
• No

Is x² + 4ab a monomial?

• Yes
• No

Is 5ab² a monomial?

• Yes
• No

• Yes

• No

Subtract -2x from -8x

Mathematical Equivalence

ON

Find the sum of 16y² and -5y².

Mathematical Equivalence

ON

​ (a)   is a monomial.

• 4x³ - 7y²
• 9x⁵ + 3x⁴ - 2x

Simplify the following expression: 2c³ + 8c³

• 10c⁶

• 10c⁹

• 10c³

• 10 + c³