1. Working with monomials and polynomials
Sem 2 – 02/05/16
Working with monomials and polynomials

2. Consider the expression x2+2xy+3
Must know these:
Consider the expression x2+2xy+3
Monomial
Polynomial
the term
the sign
the coefficient
the base
the exponent

3. Monomials
A monomial is a number, a variable or a product of a number and a variable where all exponents are whole numbers.
42, 5x, 14x12, 2pq, 4+y, 5y, 14x ,2pq−2
Monomial
Not a Monomial

4. Degree of the Monomial

5. Binomial , Trinomial, Polynomial
Adding/ subtracting the Monomial
2 terms - binomial
3 terms - trinomial
Many terms - Polynomial
Binomial
Trinomial
Polynomial

6. Expression
What kind of
- mial ?
Degree
Sign of first term
Base of first term
Coefficient of first term
Exponent of first term

7. Our Rule for Multiplying Monomials Together
“When we multiply, we take care of
signs first then
we multiply just the numbers
 and then we add the exponents.”
Memorize this!!!

8. So what does it mean…
“When we multiply, we take care of signs first then we multiply just the numbers and then we add the exponents.”

9. Multiplying Monomials –do these