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x²
2x² - x²
- 3x² - 2x
(-x² + 3x) - (5x + 2x²)
-4x² + 3x
(2x² + 6x + 5) - (6x² + 3x + 5)
4x² + 6x - 3
(4x² + 8x) - (2x + 3)
7x² + 2x + 1
(x² - 5x - 2) - (-6x² - 7x - 3)
6x² - 4x
(2x + 2x²) - (6x - 4x²)
5x² + 11x - 13
(3x² + 5x - 6) - (-2x² - 7x + 7)
-2x² + 13x
(5x² + 6x) - (7x² - 7x)
-8y
5x - 4y - (5x + 4y)
9x
(x² - 3x) - (x² - 12x)
6x² - 9x - 2
(6x² - x) - (2+ 8x)
- 2x² + 7
(-x² + 5) - (- 2 + x² )
-x² + 4x - 8
(x² + 3x - 2) - (2x² - x + 6)
-3x² + 3x
(4x² + 2x) - (7x² - x)
-9x² + 19x - 5
(-3x² + 6x + 7) - (6x² - 13x + 12)
-4x + 1
(5x + 2) - (1 + 9x)
9x² - x
(8x² + x) - (-x² + 2x)
-2x² + 12x - 11
(2x² - 5x + 25) - (4x² - 17x + 36)