Lesson about Multiplying Polynomials.pptx

DebbieranteErmac 34 views 32 slides Sep 10, 2024
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About This Presentation

This powerpoint is a lesson on Multiplying Polynomials. In this material it is shown here the different cases of multiplying polynomials that will surely be useful by anyone.


Slide Content

LESSON 3.5: MULTIPLYING POLYNOMIALS

LESSON 3.5: MULTIPLYING POLYNOMIALS WARM UP ACTIVITY: I. Simplify 1. 2. 3. 4. 5.  

LESSON 3.5: MULTIPLYING POLYNOMIALS

Monomial – an algebraic expression consisting of one term but can have multiple variables and a higher degree . degree coefficient variable/s   A. MONOMIAL BY A MONOMIAL In monomial, the each term consist of only multiplication and exponential operations. There are no addition, subtraction, or division operations within a single monomial. LESSON 3.5: MULTIPLYING POLYNOMIALS

To multiply two or more monomials , multiply the numerical coefficients and apply the laws of exponents for product . Examples: 1. Solution:   A. MONOMIAL BY A MONOMIAL PRODUCT OF POWERS POWER OF A POWER POWER OF A PRODUCT   LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Solution:   A. MONOMIAL BY A MONOMIAL 3.   Solution: )       LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: 4. 5 . Solution: Solution:   A. MONOMIAL BY A MONOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Let’s Try: 6. 7. Solution: 8. 9. ( 10. )   A. MONOMIAL BY A MONOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Polynomial – an algebraic expression of two or more terms composed of coefficients , variables , exponents , constants , and operations (except for division by variables/contain variables in the denominator ). operations exponent variables constant coefficients   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

To multiply a monomial by a polynomial , use the distributive property of multiplication over addition observing the law of exponents for product . Examples: Solution:   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

E xamples: 2. Solution:   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

E xamples: 3. Solution: ]   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

E xamples: 3. Solution:   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Let’s Try 4. 5. 6. 7. 8.   B. MONOMIAL BY A POLYNOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Binomial – a type of polynomial that consists exactly two terms . exponent constant coefficients variable operation (+/-)   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

To multiply binomial, simply distribute the 1 st term of the 1 st binomial to each term of the other binomial then distribute the second term to each term of the other binomial and simplify the results by combining similar terms. (FOIL METHOD) C. BINOMIAL BY A BINOMIAL 20 x 46 _______ 120 80 _______ 920 Another way is the VERTICAL METHOD of multiplying. It’s same as multiplying integers. LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: 1. FOIL METHOD: F 0 I L 4x + 2 combine similar terms   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: 1. Vertical Method : __________________ _______________________   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: 1. FOIL METHOD: F 0 I L )( )+ (2)(-1)( )+(3)(4)( )+(3)(-1) )]+ [(2)(-1)( )]+[(3)(4)( )]+[(3)(-1)] )( + (-2)( )+(12)( )+(-3) -3 combine similar terms   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: 2. Vertical Method : __________________ _______________________   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Let’s Try! 1. 2.   C. BINOMIAL BY A BINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

TRINOMIAL - a type of polynomial with exactly three terms . exponent operations (add & sub) constant coefficients variable(s)   D. BINOMIAL BY A TRINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

To multiply a binomial with more than one term by a polynomial with three or more terms, simply distribute the first term of the first polynomial to each term of the other polynomial . Repeat the procedure up to the last term and simplify the results by combining similar terms. D. BINOMIAL BY A TRINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product Using Distributive Property:   D. BINOMIAL BY A TRINOMIAL combine similar terms =6x 2 +8xy +5 +20y +2x +15x =6x 2 +8xy +5 +20y +17x LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product Using Vertical Method: _____________________   D. BINOMIAL BY A TRINOMIAL combine similar terms 15x +20y +5 6x 2 +8xy +2x 6x 2 +8xy +17x +5 +20y 15x +2x LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product 2. Using Distributive Property:   D. BINOMIAL BY A TRINOMIAL = 9x 2 -12xy +15xz -8y +6x +10z LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product Using Vertical Method: _____________________   D. BINOMIAL BY A TRINOMIAL 6x +8y +10z 9x 2 -12xy +15xz 9x 2 +15xz +6x +10z +8y Although, and are aligned and are also aligned, we cannot combine them because they are not similar.   -12xy LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product 3. Using Distributive Property: combine similar terms   D. BINOMIAL BY A TRINOMIAL = 6x 2 + xy -4xz -35   -10yz LESSON 3.5: MULTIPLYING POLYNOMIALS

Examples: Find the product 3. Using Vertical Method: ___________________ -------- ---------------- ____________________________   D. BINOMIAL BY A TRINOMIAL Although, and are aligned, we cannot combine them because they are not similar.   6x 2 + xy -4xz -10yz +35   LESSON 3.5: MULTIPLYING POLYNOMIALS

LET’S TRY THIS OUT! )   D. BINOMIAL BY A TRINOMIAL LESSON 3.5: MULTIPLYING POLYNOMIALS

A. Instruction: Find the product of the following expressions using Distributive Method 1. 3m 2 n 3 (4mn 4 ) 2. 5xy 3. 7k (3k 3 - 2k 2 +7) B. Instruction: Find the product of the following expressions using FOIL Method 4. (2x+3)(3x+1) 5. (2x 2 – 3y 4 )(3x 3 +y 2 ) C. Instruction: Find the product of the following expressions using Vertical Method 6. (3x+9y)(2x+5y – 4z) 7. (3x+9y)(2x 2 -5y 2 – 4z 2 )   Assignment 3.6 LESSON 3.5: MULTIPLYING POLYNOMIALS

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