Question

what is the value of x for which the expression (2x) ^n ends with zero, Where n is any natural number and X is a non zero digit

Answer 1

the value of x is 5....
The multiples of 5 are also be put in place of x..
the value with base 10 is always ends with zero.
so 2x=10
x=5
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Answer 2

Answer:

Step-by-step explanation:

Any number ending with 10 with any power other than zero in postive integers will end with 0

So 2X = 10a

X = 5a

So can be any number multiple of 5

5 , 10 ,15 etc