Question 390008
2logy = log2 + logx ___ y^2 = 2x


2^y = 4^x ___ 2^y = (2^2)^x ___ y = 2x


substituting ___ y^2 = y ___ so y equals zero or one


the log of zero is undefined , so ___ y = 1


substituting ___ (1) = 2x ___ 1/2 = x