1. Lesson 7­4.notebook
Assignment:
1­­>L7.4, pg. 426­427, #3­45 (3rds) ­ Due Tomorrow (1/17)
2­­>Checkpoint 7.3/7.4 ­ Due Tuesday (1/21)
January 16, 2014

2. Lesson 7­4.notebook
Lesson 7.4 WarmUp:
Simplify each expression.
1) (­5x2y)(3x4)
2)
(­xy)3(xz)4
3)
(3pr2)5
4)
r7n7t2
n3r3t2
5)
(­2mn2)­3
4m­6n4
January 16, 2014

3. Lesson 7­4.notebook
Lesson 7.4:
*monomial ­ one term
*binomial ­ the sum of 2 monomials
*trinomial ­ the sum of 3 monomials
*polynomial ­ a monomial or the sum of many monomials
*the degree of a monomial ­ the sum of the exponents of all of its
variables...non­zero constants have a degree of zero, and zero has no degree
*the degree of a polynomial ­ the greatest degree of any term in the polynomial
January 16, 2014

4. Lesson 7­4.notebook
January 16, 2014
*standard form of a polynomial ­ written with the terms in order from
greatest degree to least degree
*leading coefficient ­ the coefficient of the first term

5. Lesson 7­4.notebook
January 16, 2014
Lesson 7.4 examples:
Determine whether each expression is a polynomial. If so, identify the polynomial as a
monomial, binomial, or trinomial.
A) 5xy + 7yz
yes ­ binomial
B)
­15
yes ­ monomial
C)
7x­3 ­ 9b
no...
D)
6a3 + 4b + b + 10
yes ­ trinomial

6. Lesson 7­4.notebook
January 16, 2014
Find the degree of each polynomial.
E) 3r4
4
F)
b + 6
1
G)
8x5y4 ­ 2x8
9
H)
12
0

7. Lesson 7­4.notebook
January 16, 2014
Write each polynomial in standard form. Identify the leading coefficient.
I)
3x + 1 + 2x2
2x2 + 3x + 1 ; 2
J)
25 ­ x3 + x
­ x3 + x + 25 ; ­1
K)
6x3 ­ 7x5 + x ­ 2x2 + 1
­7x5 + 6x3 ­ 2x2 + x + 1 ; ­7