Question

ajutati-ma va rog!!
e urgent!
dau coroana!
multumesc​

Answer 1

4^x+4^x*4+4^x*4^2==336

4^x e factor comun

4^x*(1+1*4+1*4^2)=336

4^x*(1+4+16)=336

4^x*21=336

4^x=336/21

4^x=16

4^x=4^2

4=4=>x=2∈N

Answer 2

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