hi this is my answer i dont know its right cuz im not good at math...but hopefully it's right from my mention
just anohter thing i dont know to much latex language so ....
here is log base 3 SQUARED of y but cant do it with latex
its another role of changing base now example
we know that log base 3 of number 3 is 1 so we can write 1 as log base 3 of 3
now we remove logs and we got
hope im right and you solve other equation