Question

(7x square - 2xy - 6y square) +( 9u square + 12xy - 12x square) - (8xy + 2y square - 3x square

Answer 1

-2x square +2xy-8 y square + 9 u square

Answer 2

Answer:

-8² + 2xy + 4y² + 9u²

Step-by-step explanation:

1. 7x² + 2xy + 6y² + 9u² + 12xy + 12x² -8xy - 2y² + 3x²
2. 7x² - 12x² - 3x² -2xy + 12xy - 8xy + 6y² - 2y² + 9u²
3. -8² + 2xy + 4y² + 9u²

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