Basically, i am doing some cryptography, i need to show that a polynomial i have, which is not irreducibale, implies it is not primitive.
I am having trouble factorising these rather large polynomials.
I have checked to see whether the following polynomials are irreducible and found there...
Homework Statement
Could someone please explain how to go about putting an equation into quadratic form.
e.g:
Q(x,y,z)=7x^2-2y^2-40z^2-14xz+20yz.
Homework Equations
The Attempt at a Solution
I know it equals 7(x-z)^2 -2(y-5z)^2 +3z^2. dnt know how to get there though
Could someone please explain how to go about putting an equation into quadratic form.
e.g:
Q(x,y,z)=7x^2-2y^2-40z^2-14xz+20yz.
I know it equals 7(x-z)^2 -2(y-5z)^2 +3z^2. dnt know how to get there though.