Write the EXPANDED form of the given expression (don’t simplify or answer it, write the expanded form of the equation) (x^4)(x^4)

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Could somebody me with this radical simplification?

Match the one-to-one functions with the graphs of their inverse functions.