Methods questionz

[destain]

So...when i solved something on the cas, it gave me the answer 12n1
The answer is supposed to be x=12 or x=24
How do i change 12n1 to the answer?

And can someone explain related rates of change to me in a simple way so i understand, i dont understand how someone gets d whatever or d whatever and how they figure it all out

[TrueTears]

ok im assuming the question had some sort of domain and you solved it on the calc without the domain.

firstly the n1 or another symbol that's often used is @, is a parameter, you can vary it to get all the solutions within the required domain, ie n1 = 1, 2, 3, etc

another way of getting the right answer is just to simply put in the domain restriction while solving on the CAS, this will automatically output the answer rather than a parametric equation.