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kedua ruas di log kan
log (x)^ (2+ ³logx) = log 8
(2+ ³logx) log x = log 8
log² x / log 3 + 2 log x = log 8 ( semua ruas dikali log 3)
log²x + 2. log 3 .log x - log 3. log 8 = 0
log x1 + log x2 = - b /a ( ingat rumus x1 + x2 = -b/a ini juga berlaku dimisalkan p = log x)
log x1. x2 = - 2 log 3 / 1 = log 3^-2
x1. x2 = 3^-2 = 1/9
hasil kali nilai x adalah 1/9 jawaban E