6.3.2 Polynomials and Negative Powers

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# 6.3.2 Polynomials and Negative Powers - PowerPoint PPT Presentation

How do you find the reciprocal of a polynomial ?. Find its multiplicative inverse To find the reciprocal of Polynomial A , divide the number 1 by Polynomial A Ex: 2x - 1 -5x 2 + 3x - 1. 6.3.2 Polynomials and Negative Powers. How do you divide by a polynomial?

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Presentation Transcript
How do you find the reciprocal of a polynomial?

Find its multiplicative inverse

To find the reciprocal of Polynomial A, divide the number 1 by Polynomial A

Ex:

2x - 1 -5x2 + 3x - 1

6.3.2 Polynomials and Negative Powers
How do you divide by a polynomial?

Guided Practice

p.285 (1-6)

Multiply by the reciprocal of that polynomial

Reminder:reciprocals can be written as negative exponents

Ex: Simplify

2-3

2x  (3y)-1

6b3  (3ab)-2

Rule of negative exponents

Ex:

(a+b)(b-c)-1

(m-c)(m+c)(m-c)-1

(x-1)-1(x+1)-1

This rule applies to polynomials as well!