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1 Pure Mathematics

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Question 62

It is given that f(x)=2x3−x2−13x+14f(x) = 2x^3 - x^2 - 13x + 14f(x)=2x3−x2−13x+14

a.

Verify that x=2x=2x=2 is a root of f(x)=0f(x)=0f(x)=0 and name the corresponding linear factor.

[2]
b.

Hence, or otherwise, solve the equation 2x3−x2−13x+14=02x^3 - x^2 - 13x + 14 = 02x3−x2−13x+14=0, giving your answers to 2 decimal places where appropriate.

[5]
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1 Pure Mathematics Questions

  1. A Level
  2. /Maths
  3. /1 Pure Mathematics

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