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TRANSCRIPT
Holt Algebra 1
Chapter 7
Bell Quiz ch 7
Simplify.
1. 2-3
3. (x2)4
2. y5• y4
4. -4x2 + 2x + 6x
5. (y - 3)(y – 4)
2 pts 2 pts
2 pts 2 pts
2 pts
10 pts possible
Holt Algebra 1
7-7 Multiplying Polynomials
To multiply polynomials with more than two terms, you can use the Distributive Property several times. Multiply (5x + 3) by (2x2 + 10x – 6):
(5x + 3)(2x2 + 10x – 6) = 5x(2x2 + 10x – 6) + 3(2x2 + 10x – 6)
= 5x(2x2 + 10x – 6) + 3(2x2 + 10x – 6)
= 5x(2x2) + 5x(10x) + 5x(–6) + 3(2x2) + 3(10x) + 3(–6)
= 10x3 + 50x2 – 30x + 6x2 + 30x – 18
= 10x3 + 56x2 – 18
Holt Algebra 1
7-7 Multiplying Polynomials
Multiply.Example 4: Multiplying Polynomials
A: (x – 5)(x2 + 4x – 6) B: (2x – 5)(–4x2 – 10x + 3)
Holt Algebra 1
7-7 Multiplying Polynomials
A polynomial with m terms multiplied by a polynomial with n terms has a product that, before simplifying has mn terms. In Example 4A, there are 2 3, or 6 terms before simplifying.
Helpful Hint
••••
Holt Algebra 1
7-7 Multiplying Polynomials
Check It Out! Example 4a Multiply.
a: (x + 3)(x2 – 4x + 6) b: (3x + 2)(x2 – 2x + 5)
Holt Algebra 1
7-7 Multiplying Polynomials
• Section 7-7 (page 497) 2–24 even, 26–61 do 2 skip 1, 73, 74, 77, 78, 79
HOMEWORK
Holt Algebra 1
7-7 Multiplying Polynomials
HOMEWORK
Holt Algebra 1
7-7 Multiplying Polynomials
HOMEWORK
Holt Algebra 1
Chapter 7
Questions on 7-7
Holt Algebra 1
Chapter 7
Questions on 7-7
Holt Algebra 1
Chapter 7Ch 7 Exponents and Polynomials
Holt Algebra 1
Big Ideas
Holt Algebra 1
Chapter 7
Evaluate expressions containing zero and integer exponents.
Simplify expressions containing zero and integer exponents.
Objectives 7-1
Holt Algebra 1
Chapter 7
Use multiplication properties of exponents to evaluate and simplify expressions.
Objective 7-3
Holt Algebra 1
Chapter 7
Use division properties of exponents to evaluate and simplify expressions.
Objective 7-4
Holt Algebra 1
Chapter 7
Add and subtract polynomials.
Objective 7-6
Holt Algebra 1
Chapter 7
Multiply polynomials.
Objective 7-7
Holt Algebra 1
Chapter 7
HOMEWORK• Review Packet Ch 7Review Packet Ch 7Review Packet Ch 7Review Packet Ch 7
• VocabVocabVocabVocab CrosswordCrosswordCrosswordCrossword
• Due Next TimeDue Next TimeDue Next TimeDue Next Time
– Review 7Review 7Review 7Review 7
– VocabVocabVocabVocab CrosswordCrosswordCrosswordCrossword
– Notes 7Notes 7Notes 7Notes 7
– Extra Credit 7 Extra Credit 7 Extra Credit 7 Extra Credit 7 (listed on syllabus below the test)(listed on syllabus below the test)(listed on syllabus below the test)(listed on syllabus below the test)
– Late Work 7Late Work 7Late Work 7Late Work 7