Question

Resolva: 2^x+3 + 2^x-3 = 17

Answer 1

2^x.2³+2^x/2³=17

fazendo 2^x=m                        2^x=136/65, achei estranho esse resultado e nao deu

                                                    pra terminar

m.8+m/8=17

8m+m/8=17

mmc=8

64m+m=136

65m=136

m=136/65