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Jinglander
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If x^4 is divisible by 81 then which of the following could be the remainder when k is divided by 9
I assume by k u mean x.
If x^4 is divisible by 81 it must have 81= 3*3*3*3. If it doesn't then x^4 will not be divisible by 81.
if x=3 then x^4=3^4. so rem could be 3.
if x=6=2*3 remainder could be 6.
Please provide choices,as this question can have multiple answers.
