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Home > A2C > Chapter 9 > Lesson 9.3.1 > Problem 9-123

9-123.
  1. Without actually multiplying, decide which of the following polynomials could be the product of (x − 2)(x + 3)(x − 5). Justify your choice. Homework Help ✎

    1. x3 − 4x2 − 11x − 5

    2. 2x3 − 4x2 − 11x + 30

    3. x3 − 4x2 − 11x + 30

    4. 2x3 − 4x2 − 11x − 5

Polynomial (c) because (−2)(3)(−5) = 30 and (x)(x)(x) = x3 not 2x3.