Which expression is equivalent to logb(x)+logb(z2)\log_{b}(x) + \log_{b}(z^2)logb(x)+logb(z2)?
logb(x+z2)\log_{b}(x + z^2)logb(x+z2)
logb(xz2)\log_{b}(xz^2)logb(xz2)
2logb(xz)2\log_{b}(xz)2logb(xz)
logb(x)⋅logb(z2)\log_{b}(x) \cdot \log_{b}(z^2)logb(x)⋅logb(z2)