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Post-UTME Mathematics 2009 Objective — Question 8

Question 8 of 15 from the Post-UTME Screening (Post-UTME) Mathematics 2009 Objective paper, with the correct answer and a full explanation.

Factorize 2x²-21x+45

A. (2x-9)(x-5)
B. (2x-15)(x+3)
C. (2x+15)(x-3)
D. (2x-15)(x-3)Correct

Explanation

(2x-15)(x-3) = 2x²-6x-15x+45 = 2x²-21x+45.

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