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(2/5)^x=25.6
We move all terms to the left:
(2/5)^x-(25.6)=0
Domain of the equation: 5)^x!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
(+2/5)^x-(25.6)=0
We add all the numbers together, and all the variables
(+2/5)^x-25.6=0
We multiply all the terms by the denominator
(+2-(25.6)*5)^x=0
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