The cube of twice a number.

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Mathematics

Luca Stewart

5 December, 03:23

The cube of twice a number.

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Roberto Lyons · Answer 1

The cube of twice a number.

Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.