Pre-Calculus Practice Problem 45

Pre-Calculus Practice Problem 45 - Unit 2, Pretest on...

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Unit 2, Pretest on Polynomials and Rational Functions with Answers Blackline Masters, Advanced Math-PreCalculus Page 43 Louisiana Comprehensive Curriculum, Revised 2008 1. Factor to find the roots in each of the problems below. a. x 2 – 5 x – 14 = 0 Factors _(x – 7)(x + 2)_ Roots __7 and -2 _____ b. 2 x 2 – 13 x + 6 = 0 Factors _(2x – 1)(x – 6) R o o t s _ _ 1/2 and 6 _____ 2. Use the quadratic formula to solve 2 x 2 -3 x – 4 = 0 x = + 34 1 44 or 3- 41 3. Find the discriminant and use it to describe the nature of the roots in each of the following equations. a. 2 x
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This note was uploaded on 10/10/2011 for the course MAC 1147 taught by Professor German during the Fall '08 term at University of Florida.

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