Question

EQUAÇÃO EXPONENCIAL!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Ola Joao

2^(x+3) + 63 = 8/2^x

8*2^x + 63 = 8/2^x
8*(2^x)^2 + 63*2^x - 8 = 0

y = 2^x

8y^2 + 63y - 8 = 0

delta
d^2 = 63^2 + 4*8*8 = 3969 + 256 = 4225
d = 65

y = (-63 - 65)/16 = -128/16 = -8

2^x = -8 = 2^-3

x = -3

vamos conferir

2^(x+3) + 63 = 8/2^x
2^(-3+3) + 63 = 8/2^-3
2^0 + 63 = 8/1/8
1 + 63 = 8*(8/1)
64 = 64

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