Question

If P = 2x² + 3x²y + 3xy - 5y², Q = -5x² -4x²y + 2xy + 3y² and
R=-3x²- x²y + 5xy - 2y², show that P + Q - R = 0.​

Answer 1

Answer:

both are equal.

Step-by-step explanation:

P + Q - R = 0