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היכנס

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

הֶסבֵּר

3n2 = 12n

= 3n2 - 12n = 0

= 3n(n - 4) = 0

∴ n = 4

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