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Answered

(8x³+4x²-3)+(5x³+3x²-3)


(6x³+2y²-2) - (3x³-3y²+4)


(5xy⁴-2y³+3) +(3x⁵+3y³+4)


(8x⁴-4x³+4x²)-(4x³-4x⁴+2x)



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Sagot :

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Answer:

1. (8x³ + 4x² - 3) + (5x³ + 3x² - 3)

= 8x³ + 5x³ + 4x² + 3x² - 3 - 3

= 13x³ + 7x² - 6

2. (6x³ + 2y² - 2) - (3x³ - 3y² + 4)

= 6x³ - 3x³ + 2y² - (-3y²) - 2 - 4

= 3x³ + 5y² - 6

3. (5xy⁴ - 2y³ + 3) + (3x⁵ + 3y³ + 4)

= 3x⁵ + 5xy⁴ - 2y³ + 3y³ + 3 + 4

= 3x⁵ + 5xy⁴ + y³ + 7

4. (8x⁴ - 4x³ + 4x²) - (4x³ - 4x⁴ + 2x)

= 8x⁴ - (-4x⁴) - 4x³ - 4x³ + 4x² - 2x

= 12x⁴ - 8x³ + 4x² - 2x

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