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Add (i) 5m(3-m) and 6m^2-13m-13m (ii) ...

Add (i) `5m(3-m) and 6m^2-13m-13m` (ii) `4y(3y^2+5y-7) and 2(y^3-4y^2+5)`

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Let's solve the given problems step by step. ### Part (i): Add \(5m(3-m)\) and \(6m^2 - 13m - 13m\) **Step 1: Simplify the first expression \(5m(3 - m)\)** We can distribute \(5m\) across the terms inside the parentheses: \[ 5m(3 - m) = 5m \cdot 3 - 5m \cdot m = 15m - 5m^2 ...
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