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Algebraic Methods

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Question 5

g(x)=2x3+ax2−17x+30g(x) = 2x^3 + ax^2 - 17x + 30g(x)=2x3+ax2−17x+30

a.

Given that (x+3)(x + 3)(x+3) is a factor of g(x)g(x)g(x), use the factor theorem to find the value of aaa.

[2]
b.

Hence, show that g(x)g(x)g(x) can be written as the product of three linear factors.

[4]
Markscheme

Algebraic Methods Questions

  1. A Level
  2. /Maths
  3. /Algebraic Methods

257 exam-style questions on Edexcel A Level Maths Algebraic Methods, covering 7.1 Algebraic Fractions, 7.2 Dividing Polynomials, 7.3 The Factor Theorem, 7.4 Mathematical Proof, and 7.5 Methods of Proof. Each one has a worked solution and a mark scheme showing where the marks go.

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