Question

step by step solution using laws of exponent​

Answer 1

Answer:

I don't know

Step-by-step explanation:

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Answer 2

Answer:

answer is 4

Step-by-step explanation:

then,

2^3+2^x=2^4

=> 8+2^x=16

=>2^x=16-8

=>2^x=8

=>x=8/2

=>x= 4