4024/11 May/Jun 2021, Question 8: Expanding Two Brackets
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 3 marks
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The question, in short
Simplify two algebraic expressions: a linear expression with four terms, and the square of a binomial.
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Part (a) · 1 mark
Simplify 6x + 15 − 2x + 8 by collecting like terms.
- 16x − 2x + 15 + 8 = 4x + 23
Answer4x + 23
Part (b) · 2 marks
Expand and simplify (x − 5)².
- 1(x − 5)(x − 5) = x² − 5x − 5x + 25
- 2= x² − 10x + 25
Answerx² − 10x + 25
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Also searched as: 4024/11/M/J/21 · 4024_s21_qp_11 · 4024 s21 11 · question 8.
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