You (or somebody) has made several posts involving expressions with square roots, using the "√" symbol.
Nearly always, when you use that symbol, the meaning of the expression is unclear, because there is no way of knowing how much of the expression following the "√" is part of the square root.
Don't use the "√" symbol in your posts. Use parentheses instead; e.g. "sqrt(x^2/y^4)".