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JSCE Mathematics 2022 Objective — Question 61

Question 61 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

Given that P = 4 - 9x² and Q = 2 + 3x, what is P + Q?

A. (6 + 9x)(1 - x)Correct
B. (6 + 9x)(1 + x)
C. (6 + 3x)(1 - x²)
D. (2 + 3x)(1 - x)

Explanation

P + Q = 6 + 3x - 9x² = 3(2 + 3x)(1 - x) = (6 + 9x)(1 - x).

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