1 markBinary Operations
CSEC Mathematics · January 2009 · Paper 2 · Question 2(b)
If a * b = a² - b, evaluate 5 * 2.
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Practise this questionOther parts of this question
- 2(a)Simplify, expressing your answer as a single fraction: 2m/n - 5m/(3n).[3 marks]
- 2(c)Factorize completely 3x - 6y + x² - 2xy.[2 marks]
- 2(d)(i)State, in terms of x, the length of EACH of the pieces.[2 marks]
- 2(d)(ii)Write an expression, in terms of x, to represent the sum of the lengths of the three pieces of drinking straw.[1 mark]
- 2(d)(iii)Hence, calculate the value of x.[3 marks]
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