Section 5: Multiplying binomials

advertisement
HOMEWORK

Pg. 15 #37-42, 46-49,53, 55
Answers:
37.12b + 6c
38.-7a + 3d
39.40x – 20y
40.38a – 50b
41.28g – 48k
42.-74x + 2z
19
13
46. 𝑥 + 𝑦
6
27
𝑐
5
6
199
−
𝑑
20
47.
48. -36a -30b + 24c
49. -42x – 72y – 30z
53. 81 = 9; it is a rational number
55. Neither is correct. See student explanations.
Learning Target:
I will recognize the types of polynomials and
multiply them together to get a single
polynomials.
SECTION 4: MULTIPLYING POLYNOMIALS
TYPES OF POLYNOMIALS
Type
Monomial
Binomial
Trinomial
Bigger Polynomial
# of Terms
Example
EXPONENT RULES
EX1. MULTIPLY THE FOLLOWING EXPRESSIONS
USING THE DISTRIBUTIVE PROPERTY
3𝑥 3 (2𝑥 2 − 5𝑥 + 3)
METHODS OF MULTIPLYING TWO BINOMIALS
The Distributive Property
 the “FOIL” Method
 The Box Method

EX 2: MULTIPLY THE FOLLOWING BINOMIALS
USING THE DISTRIBUTIVE PROPERTY
(x + 4)(x – 5)
EX 2: MULTIPLY THE FOLLOWING BINOMIALS
USING THE “FOIL” METHOD
F________ O_________ I _________ L_________
(x + 4)(x – 5) =
EX 2: MULTIPLY THE FOLLOWING BINOMIALS
USING THE BOX METHOD.
(x + 4)(x – 5)
WHICH METHOD DID YOU LIKE THE BEST? USE
THAT METHOD TO SIMPLIFY THE FOLLOWING:
(5x + 3)(2- 4x) =
EX. 3: MORE THAN BINOMIALS
(4x + 1)(2x³ + 3x) – 2(x-3) is equivalent to:
(3a2 - 4a – 2)(2a -3) is equivalent to:
EX 4: AREA

Write an expression for the area of the
rectangle:
𝒙𝟐 + 𝟒𝒙 − 𝟑
𝒙+𝟐
WATCH OUT!!!
ASSIGNMENT

Polynomials Handout
Download