Math
posted by chacho on .
How to solve X^(5log x^3)=100

taking log_{10} of both sides,
(5logx^3) logx = log100
(5  3logx)logx = 2
for ease of reading let u = logx, so we have
(53u)u = 2
3u^2  5u + 2 = 0
(3u2)(u1) = 0
u = 1 or 2/3
so, x = 10^1 = 10, or
x = 10^2/3 = ∛100