I'm a Mathematica newbie.
Given something like:
$$(r_0 + r_1 a + r_2 a^2 + r_3 a^5)(r'_0 + r'_1b + r'_2 b^2 + r'_3 b^5) = 1 - a^5 b^5$$
I'd like to determine if there exist $r_i,r'_i$ that solve the equation. This is a specific version of the general problem, so what I'd like to be able to do, is have Mathematica Expand the equation on the left, set like terms equal to each other (so $r_3r'_3 a^5b^5 = a^5b^5$ in the above example.) and solve the resulting system of quadratic equations, or at least, determine if a solution exists.
Any help is appreciated. Calling
Expand doesn't resolve the equations into the form I'd like Mathematica to write them in, and as for solve systems of quadratic equations, I've seem some suggestions, but nothing that seems like it would scale.