JAMB Mathematics 2025 Objective — Question 1
Question 1 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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If a²+b²=25 and ab=12, find (a+b)².
- A. 625
- B. 144
- C. 49Correct
- D. 81
Explanation
(a+b)² = a²+b²+2ab = 25 + 2(12) = 25+24 = 49.
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