Respuesta :

Space

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