Question

Determine a expressão E sabendo que: log E = 2 log a + 3 log b - log c - log d

Answer 1

logE = 2loga + 3logb - logc - logd 
logE = (loga² + logb³) - (logc + logd)
logE = log(a² . b³) - log(c . d)
logE = log [ (a² . b³) / (c . d) ]
E = a²b³ / cd