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Substitution

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Question 27

z=m2−n22k\displaystyle z = \frac{m^2 - n^2}{2k}z=2km2−n2​

m=10m = 10m=10 n=2n = 2n=2 k=6k = 6k=6

Work out the value of zzz.

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Substitution Questions

  1. GCSE
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296 exam-style questions on WJEC GCSE Maths Substitution. Each one has a worked solution and a mark scheme showing where the marks go.

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