Step 10: Use the values of x to find y: If x = 4, then y = 12 - 4 = 8; If x = 8, then y = 12 - 8 = 4.
Step 11: The two numbers are 4 and 8.
Algebraic Equations – The question tests the ability to set up and solve a system of equations based on given conditions (sum and product of two numbers).
Quadratic Equations – The problem can be transformed into a quadratic equation, testing knowledge of factoring or using the quadratic formula.