ALG003 · Algebraic expressions · Classes 6–8
Monomials
A monomial is an expression with exactly one term, such as 4x, −7, or 3x²y.
4xMonomials
📐 Formula
monomial = one term: (number) × (variables with whole-number powers)
✏️ Worked example
4x is a monomial. At x = 2 it equals 8.
🌍 Where it is used
Area of a square (s²) and simple rates (60t km) are monomials.
❓ Quick check
Which is a monomial?
🏋️ Practice
EasyIs −9 a monomial?
Answer: Yes
MediumMultiply 3x × 4x.
Answer: 12x²
ChallengeIs 2/x a monomial?
Answer: No (negative power of x)