\+ xy = 4x2 \- 2x ["x squared times y squared plus x times y equals four x squared minus two x"].
\+ xy = 4x2 \- 2x ["x squared times y squared plus x times y equals four x squared minus two x"]. Note that, if this is an x identity, it must be satisfied for all values of x, so each coefficient of x must be zero. Solve for y for ten points.
\+ xy = 4x2 \- 2x ["x squared times y squared plus x times y equals four x squared minus two x"].
{-2}