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Algebraic Expressions

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Question 25

Given y=4xy = 4^xy=4x

a.

Express 2x 2^x\,2x in terms of yyy .

[2]
b.

Hence, or otherwise, solve 4x−3(2x)−4=04^x - 3(2^x) - 4 = 04x−3(2x)−4=0

[3]
Markscheme

Algebraic Expressions Questions

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

233 exam-style questions on Edexcel A Level Maths Algebraic Expressions, covering 1.1 Index Laws, 1.2 Expanding Brackets, 1.3 Factorising, 1.4 Negative and Fractional Indices, and 1.5 Surds. Each one has a worked solution and a mark scheme showing where the marks go.

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