Question

$$\mu \mu_{\bar{x}} +69=$$

Answer

$$m^2*u*u_bar(x)+69$$

Solution


Remove parentheses.
\[mumu_bar(x)+69\]
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
\[{m}^{2}uu_bar(x)+69\]