Of course you can use the quotient rule, but it is usually not the easiest method. If we do use it here, we get $${d\over dx}{10\over x^2}={x^2\cdot 0-10\cdot 2x\over x^4}= {-20\over x^3},$$ since the derivative of 10 is 0.
1 Young children can't tell the difference between fantasy and reality. 2  Your preschooler's rich imagination is a big part of his normal development, but that means it is usually hard for him to tell the difference between what's real and what's imaginary.
Linden Lab pointed out that the virtual world is not meant for children (people under the age of 18) because of the mature content and what happens within Second Life. However, minors aged between 13â17 can access Second Life, but they will be restricted to what they can see or do based on age.