Solve 22x−5(2x)+4=02^{2x} - 5(2^x) + 4 = 022x−5(2x)+4=0.
x=0x = 0x=0 or x=2x = 2x=2
x=1x = 1x=1 or x=4x = 4x=4
x=0x = 0x=0 or x=1x = 1x=1
x=2x = 2x=2 or x=4x = 4x=4