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WAEC Further Mathematics 2023 Objective — Question 4

Question 4 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2023 Objective paper, with the correct answer and a full explanation.

If 5x + 7 = P(x+3) + Q(x-1) (identity), find the value of P.

A. 3Correct
B. 2
C. 1
D. 0

Explanation

Let x=1: 5(1)+7 = P(1+3)+Q(1-1) => 12=4P => P=12/4=3.

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