Bell Problem Use direct substitution to evaluate the polynomial function for the given value of x: f(x)=5x 3 – 2x 2 + 10x – 15: x = -1.

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Presentation transcript:

Bell Problem Use direct substitution to evaluate the polynomial function for the given value of x: f(x)=5x 3 – 2x x – 15: x = -1

5.3 Add, Subtract, and Multiply Polynomials Standards: 1.Understand how operations are related 2.Analyze situations using algebraic symbols

Adding Polynomials *Combine like terms* a.Add 2x 3 – 5x 2 + 3x – 9and x 3 + 6x in a vertical format

b. Add 3y 3 – 2y 2 – 7y and -4y 2 + 2y – 5 in a horizontal format

Subtracting Polynomials a. Subtract 3x 3 + 2x 2 – x + 7 from 8x 3 – x 2 – 5x + 1 in a vertical format

b. Subtract 5z 2 – z + 3 from 4z 2 + 9z – 12 in a horizontal format

Multiplying Polynomials a.Multiply -2y 2 + 3y – 6 and y – 2 a.Multiply x + 3 and 3x 2 – 2x + 4

Ex. Multiply x – 5, x + 1, and x + 3

Ex. Find the product: (xy - 4) 3

Homework pg. 349 #8-20 even, 36, 42