add 2x³ -3x²+7x-8,-5x³+2x²_4x+1,3-6x+5x²_x³
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Answer:
-4x³+ 4x² - 3x - 4
Step-by-step explanation:
2x³ - 3x²+7x - 8 ,
-5x³+2x²- 4x + 1,
- x³+ 5x² - 6x + 3
-4x³+ 4x² - 3x - 4
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