PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 2
pake latex gan nulisnya http://latex.codecogs.com/gif.latex?\\maksudnya~gini?&space;\\2^{2x}+2^{-2x}=23,~2^{3x}+2^{-3x}=?&space;\\&space;\\cari~dulu~nilai~2^x+2^{-x}&space;\\caranya~dikuadratin&space;(2^x+2^{-x})^{2}~substitusi~nilai~2^{...