Question

.
Prove that if a number is doubled, then its cube is eight times the cube of the given
number.
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Answer 1

Answer:

Step-by-step explanation:

let the number be x

let the new number be 2x

cube of original no. = x^3

cube of new no. = 8x^3

cube of original no. / cube of new no.

=x^3/ 8x^3

=1/8

=1:8

Therefore the cube of the new number will be 8 times the cube of the number if it is doubled.