Question

log x + log x2 + log x3 + log x4 = -20 o valor de x é

Answer 1

logx + logx^2 + logx^3 + logx^4 = - 20
logx + 2logx + 3logx + 4logx = - 20
10logx = - 20
logx = - 20/10
logx = - 2
x = 10^(-2)
x = 1 / (10^2)
x = 1/100