Answer:
Step-by-step explanation:
7x^6 + 2x^5 - 3x^2 + 9x + 5x^5 + 8x^3 - 6x^2 + 2x - 5
7x^6 + 2x^5 + 5x^5 + 8x^3 - 3x^2 - 6x^2 + 9x + 2x - 5
7x^6 + 7x^5 + 8x^3 - 9x^2 + 11x - 5