Question

função exponencial 2²x-5.2x+4=0
me ajudem o 2 é a base e o 2x é o expoente-5.2base e x expoente=0

Answer 1

$2^2^x-5.2^x+4 = 0\\\\ 2^x = y\\\\ y^2-5y+4=0\\\\ \Delta = 25-16\\\\ \Delta = 9\\\\ y^1 = 4\\\\ y^2 = 1$

$2^x = y\\\\ 2^x = 4\\\\ 2^x = 2^2\\\\ \boxed{x=2}\\\\\ 2^x=y\\\\ 2^x = 1\\\\ 2^x = 2^0\\\\ \boxed{x=0}\\\\\ \boxed{S(0,2)}$