BECE Mathematics 2023 Objective — Question 92

Question 92 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Find the coefficient of x in the expansion of (2x + 1)(1 − 2x).

A. −2
B. −1
C. 0Correct
D. 1
E. 2

Explanation

(2x + 1)(1 − 2x) = 2x − 4x² + 1 − 2x = 1 − 4x². There is no x term, so the coefficient is 0.

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