What is the formula to calculate the present value of an investment with multiple cash flows?

PV $=$ CF$*(1+$r$)+$ CF$*(1+$r$)^2+...+$ CF$*(1+$r$)$

PV $=$ CF$/(1+$r$)+$ CF$/(1+$r$)^2+...+$ CF$/(1+$r$)+$ initial investment

The formula to calculate the present value of an investment with multiple cash flows is PV $=$ CF$/(1+$r$)+$ CF$/(1+$r$)^2+...+$ CF$/(1+$r$),$ where PV is the present value, CF$,$ CF$,...,$ CF$$ are the cash flows, r is the interest rate, and $,^2,...,$ represent the time periods.

PV $=$ CF$+$ CF$+...+$ CF$$