Answer :
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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