Q. If a + b = 10 and ab- 13 = -ba - 11, then what is the value of 3ab + 4a2 + 5b2 ?
A) 300
B) 450
C) 750
D) 600
✔ Correct Answer: 300
Exam Insight
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A) 300
B) 450
C) 750
D) 600
✔ Correct Answer: 300
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