JSCE Mathematics 2023 Objective — Question 53

Question 53 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

Factorise 4x² − 12/5x + 9/25.

A. (2x − 2/3)²
B. (2x + 2/3)²
C. (2x − 5/3)²
D. (2x − 3/5)²Correct

Explanation

4x² = (2x)² and 9/25 = (3/5)². Middle term 2 x 2x x 3/5 = 12/5 x. So (2x − 3/5)².

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