Question

4. What is the product of (3x - 1)(x + 4)?
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Answer 1

`3 {x}^(2) + 11x - 4`

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`(3x - 1)(x + 4) \\ \\ = 3x(x + 4) - 1(x + 4) \\ \\ = 3 {x}^(2) + 12x - x - 4 \\ \\ = 3 {x}^(2) + 11x - 4`

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