Degree and Order of Polynomials

Objectives The student will be able to: 1. find the degree of a polynomial. 2. arrange the terms of a polynomial in ascending or descending order. What does each prefix mean? mono one bi

two tri three What about poly? one or more A polynomial is a monomial or a sum/ difference of monomials. Important Note!! An expression is not a polynomial if

there is a variable in the denominator. State whether each expression is a polynomial. If it is, identify it. 1) 7y - 3x + 4 trinomial 2) 10x3yz2 3) 5

7y 2 2y monomial not a polynomial The degree of a monomial is the sum of the exponents of the variables. Find the degree of each monomial.

1) 5x2 2 2) 4a4b3c 8 3) -3 0 To find the degree of a polynomial, find the largest degree of the terms. 1) 8x2 - 2x + 7

Degrees: 2 1 0 Which is biggest? 2 is the degree! 2) y7 + 6y4 + 3x4m4 Degrees: 7 4 8 8 is the degree! Find the degree of x5 x3y2 + 4 1.

2. 3. 4. 5. 0 2 3 5 10

A polynomial is normally put in ascending or descending order. What is ascending order? Going from small to big exponents. What is descending order? Going from big to small exponents. Put in descending order: 1) 8x - 3x2 + x4 - 4

x4 - 3x2 + 8x - 4 2) Put in descending order in terms of x: 12x2y3 - 6x3y2 + 3y - 2x -6x3y2 + 12x2y3 - 2x + 3y 3) Put in ascending order in terms of y: 12x2y3 - 6x3y2 + 3y - 2x -2x + 3y - 6x3y2 + 12x2y3 4) Put in ascending order: 5a3 - 3 + 2a - a2

-3 + 2a - a2 + 5a3 Write in ascending order in terms of y: x4 x3y2 + 4xy 2x2y3 1. 2. 3. 4. x4 + 4xy x3y2 2x2y3

2x2y3 x3y2 + 4xy + x4 x4 x3y2 2x2y3 + 4xy 4xy 2x2y3 x3y2 + x4

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