3. Add: 5x3 + 7 + 6x - 5x2 : 2x2 - 8 - 9x - 4x - 2x2 + 3x3 and x - x2 - 3 - 4
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Answer:
2(4x³ - 3x² - 3x - 4)
Step-by-step explanation:
5x³ + 7 + 6x - 5x² + 2x² - 8 - 9x - 4x - 2x² + 3x³ + x - x²- 3 - 4
(5x³ + 3x³) + (-5x² + 2x² - 2x² - x²) + (6x - 9x - 4x + x) + (7 - 8 - 3 -4)
= 8x³ - 6x² - 6x - 8
= 2(4x³ - 3x² - 3x - 4)
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