The sum of the first n cubed numbers is: [n*(n+1)/2]2 which is the same as the square of the sum of the first n numbers.
- 12 + 4 = - 8
sum means to add so..... 8 + 4 = 12
4
It is: 3*(4+12) = 48
the answer of 2 cubed is 4 because 2x2=4
The sum of 8 and 4 is 12. In mathematics, addition is the operation of combining two or more numbers to find their total. In this case, when you add 8 and 4 together, you get the sum of 12.
12 + 4 = 16
The sum of the first n cubed numbers is: [n*(n+1)/2]2 which is the same as the square of the sum of the first n numbers.
- 12 + 4 = - 8
sum means to add so..... 8 + 4 = 12
12 cubed = 12 x 12 x 12 = 1728
8+4=12
4 + 12 = 16
8 and 4
4
4/(n + 12)