Implied Growth Rate

Why can’t you use this formula

Re = D1/P + G

why do you have to use this formula

Vo = do(1 + G) / (re - G )

What is that first formula?

I think the first formula is simply the GGM Formula switched around algebraically. Don’t waste the brain space on that first formula in my opinion.

If you’re asked for the Required Return using GGM, just plug in the middle answer choice on exam day into the GGM or use algebra on the GGM to solve.