The required value of the expression for the sum of 1 cubed, 2 cubed, and 3 cubed is 36.
Given that, Benjamin writes an expression for the sum of 1 cubed, 2 cubed and 3 cubed.
To find the value of the expression for the sum of 1 cubed, 2 cubed, and 3 cubed, calculate each cubed value and then add them together. Let a, b and c be real numbers, The sum of each of the cubes is given by . By evaluating the values of cubes and take the sum gives the required answer.
That implies,
1 cubed = = 1x 1 x 1 = 1
2 cubed = = 2 x 2 x 2 = 8
3 cubed = = 3 x 3 x3 = 27
Now, add these values together:
1 + 8 + 27 = 36
Therefore, the value of the expression for the sum of 1 cubed, 2 cubed, and 3 cubed is 36.