JAMB Mathematics 2010 Objective — Question 16
Question 16 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2010 Objective paper, with the correct answer and a full explanation.
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16. Solve for x and y if x-y=2 and x^2-y^2=8. A. (-3,-1) B. (1,3) C. (-1,3) D. (3,1)
- A. (-3,-1)
- B. (1,3)
- C. (-1,3)
- D. (3,1)Correct
Explanation
(x+y)(x-y)=8. Since x-y=2, x+y=4. Solving simultaneously: x=3, y=1.
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