Factoring is a process of turning a sum or difference into a product. If the first term of the trinomial is x squared, then we know that the first terms in each factor must be x. If the "c" term of the trinomial is negative, like in these examples, then we know our remaining terms must be one positive, and one negative. We look for integers that multiply to the "c" term and add to the "b" term, being careful with the positive and negative sign placement.
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