Recent content by wxrebecca

How to prove that a polynomial of degree 2 or 3 over a filed F is a prime polynomial if and only if the polynomial does not have a root in F? and i can't think of an example of polynomial of degree 4 over a field F that has no root in F but is not a prime polynomial. it says each...

it's the first one. but what's the differences between these two exactly?

I think it's several independent variables. However, the question didn't say so

dx/dt= -x+y dy/dt= 2x x(0)=0 y(0)=1 I'm not familiar how to solve a system like this. Somebody please help? Thanks

What's the difference between polynomials (as elements of a ring of polynomials) and polynomial functions??