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1.2 Algebra and Functions

1.2 Algebra and Functions

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Question 28

f(x)=x3+6x2+4x−15f(x) = x^3 + 6x^2 + 4x - 15f(x)=x3+6x2+4x−15

a.

Use the factor theorem to show that x=−3x = -3x=−3 is a solution to f(x)=0f(x) = 0f(x)=0

[2]
b.

Find the other solutions to the equation f(x)=0f(x) = 0f(x)=0 giving your answers to 2 decimal places

[5]
Markscheme

1.2 Algebra and Functions Questions

  1. A Level
  2. /Maths
  3. /1.2 Algebra and Functions

302 exam-style questions on WJEC A Level Maths 1.2 Algebra and Functions, covering 1.2.1 Algebra and Functions, 1.2.2 Algebra and Functions, 1.2.3 Algebra and Functions, 1.2.4 Algebra and Functions, 1.2.5 Algebra and Functions, 1.2.6 Algebra and Functions, 1.2.7 Algebra and Functions, 1.2.8 Algebra and Functions, 1.2.9 Algebra and Functions, 1.2.10 Algebra and Functions, 1.2.11 Algebra and Functions, and 1.2.12 Algebra and Functions. Each one has a worked solution and a mark scheme showing where the marks go.

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