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Algebraic Methods

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Question 50
a.

Prove that for all real values of xxx:

x2+6x>4x−6 x^2 + 6x > 4x - 6 x2+6x>4x−6
[3]
b.

"If I add 6 to a number and then square the sum, the result is greater than the square of the original number."

State, giving a reason, if the above statement is always true, sometimes true or never true. Determine the exact range of values of the number for which the statement is true.

[3]
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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