# The cube of twice a number.

A latter institution question and answer asked students to mention what they feel is the most important element for a student to do if they wanted to achieve success. Out of the many answers, one that that stood out was practice. Persons who were successful do not become successful by being born. They work hard and dedication their lives to succeeding. If you want to attain your goals, keep this in mind! These are some question and answer examples that you could simply work with to enrich your knowledge and gain insight that will help you to sustain your school studies.

## Question:

The cube of twice a number.

The cube of twice a number x is 8x³

Let the number be represented by x

• Twice the number = 2x
• The cube of twice the number = (2x)³

Removing the parenthesis by expanding the expression above:

The cube of twice the number = 2³(x³)

The cube of twice the number = 8x³

Hence the cube of twice a number x is 8x³

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