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

Polynomial equations with the solver Problem set A Answers

Skills

  1. x = −1.77, 0.520 or 3.25

  2. x = −2.09, −1, 0.572 or 2.51

  3. x = −1.28

  4. x = −1.54

    1. (a) \(2x^2 - 7x + 3=0\)
    2. (b) x = 0.5 or 3

In context

    1. (a) \(x^3 + 11x^2 + 28x - 500=0\)
    2. (b) x = 4.81
    1. (a) \(v^2+20v-4800=0\)
    2. (b) v = 60 km/h

Stretch

    1. (a) \(2x^2 - 2x - 7=0\)
    2. (b) x = −1.44 or 2.44

  2. t = 4.82 hours

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