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You have to find two numbers whose sum is -18, and whose product is 3. Experimenting with different combinations of factors for 18, you find that this is 6 and -3, so the factors are (x+6)(x-3).

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14y ago
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9y ago

(x + 6)(x - 3)

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Q: What is the factor of the trinomial x2 plus 3x - 18?
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