Prove that if number is trebled then its cube is 27 times the cube of the given number

I will give two examples:-

1)Let the number be x.Then

x*x*x=x^{3}

Triple value=3x

3x*3x*3x=27x^{3 }

It is proved

2) Let the number be 1. Then,

1*1*1=1

Triple value=3

3*3*3=27

Thus, it is proven.

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