Further MathematicsThe binomial theoremWAEC
Find the coefficient of x² in the expansion of (1 + 2x)⁵.
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Answer: D. 40
⁵C₂ × 2² = 10 × 4 = 40.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Further Mathematics · The binomial theorem
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