Subtract 3 - x + x2 - 2x3 from the sum of 1 + x - x2+ x3
and x3 + 3x2 - 2x + 3
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Step-by-step explanation:
sum of 1 + x - x2+ x3 and x3 + 3x2 - 2x + 3
= (1 + x - x² + x³) + (x³ + 3x² - 2x + 3)
= 2x³ + 2x² - x + 4
Now (2x³ + 2x² - x + 4) - (3 - x + x² - 2x³)
= 2x³ + 2x² - x + 4 - 3 + x - x² + 2x³
= 4x³ + x² + 1
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