Unit 1: Number and Algebra

Topic 1.11: Partial fractions (HL only) Questions

Practice 20 exam-style questions for IB Math AA SL Topic 1.11. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.

11 mark
2026
To find B in (2x + 1)/[(x + 3)(x − 1)] = A/(x + 3) + B/(x − 1), substitute:
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2Express3 marks
2026
Express (2x + 5)/[(x + 1)(x + 4)] in partial fractions.
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31 mark
2026
Which fraction can be split using TWO simple partial fractions A/(…) + B/(…)?
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4Show that1 mark
2026
Show that .
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5Express3 marks
2026
Express 9/[(x − 1)(x + 2)] in partial fractions.
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61 mark
2026
Factorise the denominator of (x − 1)/(x² − 5x + 6).
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71 mark
2026
After clearing fractions in (x + 4)/[(x − 1)(x + 2)] = A/(x − 1) + B/(x + 2), the identity is:
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81 mark
2026
Which fraction must be DIVIDED before it can be split?
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9Express3 marks
2026
Express (x + 6)/(x² − 9) in partial fractions.
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101 mark
2026
In (x + 4)/[(x − 1)(x + 2)] = A/(x − 1) + B/(x + 2), find A.
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11Express3 marks
2026
Express (x − 8)/[(x − 2)(x + 1)] in partial fractions.
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121 mark
2026
Express 5/[(x)(x − 5)] in partial fractions.
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13Express3 marks
2026
Express (4x − 1)/(x² − x − 2) in partial fractions.
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14Express3 marks
2026
Express (3x + 1)/[(x − 1)(x + 2)] in partial fractions.
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15Express3 marks
2026
Express (2x − 3)/(x² + 2x) in partial fractions.
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161 mark
2026
Express (5x)/(x² − x) in partial fractions.
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171 mark
2026
To find A and B by EQUATING COEFFICIENTS in 3x + 1 = A(x − 1) + B(x + 2), you:
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18Find2 marks
2026
Express in partial fractions.
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19Show that4 marks
2026
Show that .
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20Express3 marks
2026
Express (8 − x)/(x² + 2x − 8) in partial fractions.
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