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IB Mathematics: Applications and Interpretation HL · 12.4: Solving Equations with Technology · 12.4.3

Polynomial equations with the solver Problem set B Answers

Skills

  1. x = −1.29, 0.397 or 3.90

  2. x = −2.31, −0.852, 0.364 or 2.80

  3. x = −1.20

  4. x = −2.32

    1. (a) \(3x^2 - 7x + 2=0\)
    2. (b) x = 0.333 or 2

In context

    1. (a) \(x^3 + 7x^2 + 10x - 150=0\)
    2. (b) x = 3.35
    1. (a) \(v^2+6v-720=0\)
    2. (b) v = 24 km/h

Stretch

    1. (a) \(3x^2 + x - 12=0\)
    2. (b) x = −2.17 or 1.84

  2. t = 5.30 months

jmaths.xyz · AI HL · 12.4.3 Polynomial equations with the solver