I need answers for this plz it's urgent
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6. = x⁴-6x³+x²-3x+1-(8-6x+x²+7x³+x⁵)
= x⁴-6x³+x²-3x+1-8+6x-x²-7x³-x⁵
= -x⁵+x⁴-13x³+3x+1
7. => x³+3x-8+X= 3x³+x²+6
=> X= 3x³+x²+6-x³-3x+8
=> X= 2x³+x²-3x+14
8. = 7xy+5yz-3zx+4yz+9zx-4y-3xz+5x-2xy
= 5xy+9yz+6zx-4y+5x
9. = 7x²-4xy+8y²+5x-3y-5x²+4y²-6y+3
= 2x²+12y²-4xy+5x-6y+3
10. = 49x²+36y²+85xy
= 49(3)²+36(6)²+85×3×6
= 49×9+36×36+85×3×6
= 3267
hope it will help you ☺️❤️
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