Answer :

Final answer:

To simplify the expression, multiply the terms and combine like terms. The simplified expression is 33x⁷ - 34x⁵.

Explanation:

To simplify the expression, we need to apply the distributive property and combine like terms.

Let's break it down step by step:

  1. Multiply 9x⁴ by (x³- 6x) to get 9x⁷ - 54x⁵.
  2. Multiply 4x² by (6x⁵ + 5x³) to get 24x⁷ + 20x⁵.
  3. Add the two terms together: (9x⁷ - 54x⁵) + (24x⁷ + 20x⁵) = 33x⁷ - 34x⁵.

Therefore, the simplified expression is 33x⁷ - 34x⁵.

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