Quelpr
1 markSubstitution in Algebraic Expressions

CSEC Mathematics · January 2007 · Paper 2 · Question 2(a)(i)

This question involves evaluating algebraic expressions, solving inequalities, and forming algebraic expressions and equations from word problems. For part (a), given a=2, b=-3, and c=4.

Evaluate ab - bc

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 2(a)(ii)Evaluate b(a - c)^2[2 marks]
  2. 2(b)(i)Solve for x where x ∈ Z: x/2 + x/3 = 5[3 marks]
  3. 2(b)(ii)Solve for x where x ∈ Z: 4 - x ≤ 13[3 marks]
  4. 2(c)(i)a)Write an algebraic expression in m for the cost of FIVE muffins.[1 mark]
  5. 2(c)(i)b)Write an algebraic expression in m for the cost of SIX cupcakes.[1 mark]
  6. 2(c)(ii)Write an equation, in terms of m, to represent the following information: The TOTAL cost of 5 muffins and 6 cupcakes is $31.50.[1 mark]

More practice: the rest of this paper · more Substitution in Algebraic Expressions questions · all CSEC Mathematics past papers