BECE Mathematics 2022 Objective — Question 75

Question 75 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Factorise completely (a - 3b)(2x - y) + (a - 3b)(x +7y).

A. 2(a - 3b) (x + 3y)
B. 3(a - 3b) (x + 2y)Correct
C. 2(a - b) (x +3y)
D. 3(a-b) (x+2b)
E. 3(a - 3b) (x - 2b)

Explanation

Take out (a - 3b): (a - 3b)(2x - y + x + 7y) = (a - 3b)(3x + 6y) = 3(a - 3b)(x + 2y).

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