How do I express 1/2 of the difference of a number cubed and one?

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Mathematics

Brewster

15 May, 19:10

How do I express 1/2 of the difference of a number cubed and one?

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Isaiah Faulkner · Answer 1

1/2 (x^3-1) is how you would express 1/2 of the difference of a number cubed and one. Putting 1/2 on the outside of the parentheses multiply all number inside of the parentheses by 1/2. X^3 represents an unknown number, cubed. The difference of a number cubes and one is x^3-1.