Respuesta :
Answer:
5x²y + 4xy - 4
Step-by-step explanation:
Step 1: Write out expression
5x²y - 3xy - 8 + 7xy + 4
Step 2: Combine like terms (xy)
5x²y + 4xy - 8 + 4
Step 3: Combine like terms (constants)
5x²y + 4xy - 4
.$/8): sodium disorder so dish dkdorifh so dish d jsiduchsisjdb sidixbdiie