Which expression represents the equivalent form of logb(x4)\log_{b}(x^{4})logb(x4)?
4+logb(x)4 + \log_{b}(x)4+logb(x)
4⋅logb(x)4 \cdot \log_{b}(x)4⋅logb(x)
(logb(x))4(\log_{b}(x))^4(logb(x))4
logb(4x)\log_{b}(4x)logb(4x)