Question

Prove that a number is doubled then i cube
is 8 times the cube of the given number.
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Answer 1

Answer:

Let the number be x.

then its cube will be x3(x power 3).....1

if the number is doubled then we will get 2x as the new number.

and the cube of new number will be 8x3(8*xpower 3).....2

Comparing eq 1 and 2

we get that the new number's cube is 8 times of first number.