C-04-Q092mediumsingle_mcqSolve 2x+21−x=32^x + 2^{1-x} = 32x+21−x=3:ax=0x = 0x=0 or x=1x = 1x=1bx=2x = 2x= or ব্যাখ্যাLet t=2xt=2^xt=2x; then t+2t=3t+\frac{2}{t}=3t+t leads to , so or , giving or .