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Vikentia [17]
3 years ago
10

Help me with this question plz thx!!​

Mathematics
1 answer:
Alborosie3 years ago
8 0

Answer:

9x² - 9y + 9

Step-by-step explanation:

Step 1: Write out expression

3 - 2y - 1 + 5x² - 7y + 7 + 4x²

Step 2: Combine like terms (x²)

9x² + 3 - 2y - 1 - 7y + 7

Step 3: Combine like terms (y)

9x² - 9y + 3 - 1 + 7

Step 4: Combine like terms (constants)

9x² - 9y + 9

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6 0
3 years ago
-4-7=? I dont really understand
Anit [1.1K]

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3 years ago
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Softa [21]

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4 0
3 years ago
Thank you Everyone for all your hard work
Lemur [1.5K]

Answer:

no problem

Step-by-step explanation:

3 0
3 years ago
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