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Algebraic Expressions

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Question 29

Find, using algebra, the values of k k\,k and mmm.

i.

a=16a=16a=16 is a real solution to the equation

a2=ka a^2=k\sqrt{a} a2=ka​
[3]
ii.

b=±22b=\pm2\sqrt{2}b=±22​ are real solutions to the equation

b4−mb2−32=0 b^4-mb^2-32=0 b4−mb2−32=0
[4]
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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