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Defining the equation is easy :
x = var('x',domain='integer') res =solve([x^2 ==1,2^9+2^8+2^7+2^6+2^5+x+2^3+2^2+2^1+2^0 == 2*x+2],x) print "res = ",res # no solution
but like Dan Fuela pointed out, your equation has no solution when x in F2 + you should accept the fact that you mix up many things "the concatening operator" (no meaning in maths), F2 is for you exactly the same than the set of the two integers {0,1} and so on.
