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Mr. Eaton Advanced 8 th Grade Math Scott Foresman – Chapter 10-5.

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Presentation on theme: "Mr. Eaton Advanced 8 th Grade Math Scott Foresman – Chapter 10-5."— Presentation transcript:

1 Mr. Eaton Advanced 8 th Grade Math Scott Foresman – Chapter 10-5

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3  Please get out a piece of paper and answer the following questions. I will come around and stamp each correct answer. Raise your hand with any questions!  1) Evaluate each expression for n = -2, n = 1, and n = 5. A) B) C)

4  Define: polynomial, terms, monomial, binomial, trinomial, and degree  Learn how to write polynomials in descending order and determine its degree  Evaluate polynomial expressions

5  A polynomial is an algebraic expression that is the sum of one or more parts, called terms.  This polynomial: -2x 3 - 4x 2 + 3x + 1  Has these terms: -2x 3 -4x 2 3x 1

6  Monomial: one term  x  2x 3  -2  Binomial: two terms  x + 1  2x 3 – 7x  Trinomial: three terms  x + 3x 2 – 4x 3  x 2 – 4x 3 + 3

7  The degree of a polynomial is the value of the largest exponent that appears in any term.  Try It: What is the degree of the following expressions: A) 2x 3 B) -2 C) x D) 2x 2 – 7x E) x 2 – 4x 3 + 3

8  Highest degree first  “Writing a polynomial in descending order”  EX: x 4 + 3x – 2x should be written as: – 2x 6 + x 4 + 3x + 5

9  Replacement and order of operations are the same as they have been in the past.  Try It/In Class Examples: A) Evaluate x 3 – x 2 + x + 5 for x = 0 and x = -3 B) The volume of a cube can be represented by the equation V = s 3, where V = volume and s = the length of a side. Find the volume of a cube with each given side length: 3 inches 1.5 inches 2 cm


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