Q: What is 2n-3 equals 9?

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37 Fit the cubic: Un = (2n3 - 9n2 + 16n + 6)/3 for n = 1, 2, 3, ...

There are many possible answers. One possibility is Un = (2n3 - 3n2 + n + 24)/6

9.

2, which equals 54. 3, which equals 36. 4, which equals 27. 6, which equals 18. 9, which equals 12. 12, which equals 9.

12 plus 9 equals 21.

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5(25m3 + 2n3)

37 Fit the cubic: Un = (2n3 - 9n2 + 16n + 6)/3 for n = 1, 2, 3, ...

There are many possible answers. One possibility is Un = (2n3 - 3n2 + n + 24)/6

81 divided by 9 equals 9

If x=9, x=9

9-8 equals = 1

9 out of 15 equals 60%

2n2y2(2n3)(3y3)

2n3

No! It equals 15, but 9-6=3.

9 out of 36 equals 25%

9