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Solve:  `x^2 + 7x + 6`

Since this is a trinomial, it will factor to 2 binomials. In standard form, we have `ax^2 + bx + c.`

Since a is 1, we look for 2 numbers that will multiply to give us "c" and  add to give us "b".

Factors of 6 are:  1 x 6, and 2 x 3.  Since we want a sum of 7, the pair we will use will be 6 and1.

Therefore, when we factor we get:  `(x + 6)(x + 1).`

Notice if we multiply together we'd get `x^2 + 1x + 6x + 6 = x^2 + 7x + 6.`

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