Question

9+6mn+-25

Answer 1

    А что вообще надо было сделать,какое задание?Если  разложить на множители,тогда так.=(3m+n)²-5²=(3m+n+5)(3m+n-5)   

Answer 2

The expression you've provided is "9 + 6mn - 25." If you're looking for a simplified form of this expression, there's not much that can be simplified since it contains variables. If you want to perform arithmetic operations, you would need specific values for the variable "m" and "n" to substitute into the expression. Without those values, the expression remains in its current form.