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The first step in simplifying the expression \((2x^3 - 12x^2 + 5x - 3) - (7x^3 v + v10x^2 - 3x + 20)\) is to **distribute the negative to the second set of parentheses**. This means you need to change the signs of each term inside the second parentheses before combining like terms or simplifying further.
So, the correct response is: **Distribute the negative to the second set of parentheses.**