JAMB Mathematics 2018 Objective — Question 38

Question 38 of 39 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2018 Objective paper, with the correct answer and a full explanation.

Factorise 2y²−15xy+18x²

A. (2y+3x)(y−6x)
B. (3y+2x)(y+6x)
C. (2y−3x)(y+6x)
D. (2y−3x)(y−6x)Correct

Explanation

Looking for factors of 2×18=36 that sum to −15: −3 and −12. Splitting and factoring by grouping gives (2y−3x)(y−6x).

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