At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Discover detailed solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Consider the following equation.
14xy - 14y² + 4x - 48 = 0
Find the matrix A of the quadratic form associated with the equation.
A = ________.