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Answers & Comments
Answer:
1.![x^{2} +x-3 x^{2} +x-3](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2Bx-3)
2.![-x^{2} +x+9 -x^{2} +x+9](https://tex.z-dn.net/?f=-x%5E%7B2%7D%20%2Bx%2B9)
3.![x^{3} +6x^{2} +9x x^{3} +6x^{2} +9x](https://tex.z-dn.net/?f=x%5E%7B3%7D%20%2B6x%5E%7B2%7D%20%2B9x)
4.![x x](https://tex.z-dn.net/?f=x)
5.![x^{4} +3x^{3} -6x^{2} -18x x^{4} +3x^{3} -6x^{2} -18x](https://tex.z-dn.net/?f=x%5E%7B4%7D%20%2B3x%5E%7B3%7D%20-6x%5E%7B2%7D%20-18x)
6.![x^{3} -6x+3x^{2} -18 x^{3} -6x+3x^{2} -18](https://tex.z-dn.net/?f=x%5E%7B3%7D%20-6x%2B3x%5E%7B2%7D%20-18)
7.![x^{4} +3x^{3} -6x^{2} -18x x^{4} +3x^{3} -6x^{2} -18x](https://tex.z-dn.net/?f=x%5E%7B4%7D%20%2B3x%5E%7B3%7D%20-6x%5E%7B2%7D%20-18x)
8.![x\sqrt{x-1} +3\sqrt{x-1} x\sqrt{x-1} +3\sqrt{x-1}](https://tex.z-dn.net/?f=x%5Csqrt%7Bx-1%7D%20%2B3%5Csqrt%7Bx-1%7D)
9.![x^{3} +6x^{2} +9X x^{3} +6x^{2} +9X](https://tex.z-dn.net/?f=x%5E%7B3%7D%20%2B6x%5E%7B2%7D%20%2B9X)
10.![x^{2} \sqrt{x-1} -6\sqrt{x-1} x^{2} \sqrt{x-1} -6\sqrt{x-1}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%5Csqrt%7Bx-1%7D%20-6%5Csqrt%7Bx-1%7D)
Step-by-step explanation: