How to solve 3^2x - 30(3^x-2) +1 = 0 with u sub

Описание к видео How to solve 3^2x - 30(3^x-2) +1 = 0 with u sub

In this video I demonstrate how to solve 3^2x - 30(3^x-2) +1 = 0 with u sub. The importance of indices is explained. Step by step tutorial by Math In Twi. Com

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