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JAMB - Mathematics (1991 - No. 22)
Find the positive number n, such that thrice its square is equal to twelve times the number
1
2
3
4
Paaiškinimas
3n
2
= 12n
= 3n
2
- 12n = 0
= 3n(n - 4) = 0
∴ n = 4
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