x^2+6x-7
x^2 * -7 = -7x^2
-7x^2 = x * y
6x = x + y
Therefore, x = 7x and y = -1x.
7 7x -7
x x^2. -1x
x -1
The factored form is (7+x)(x-1).
This expression factors as (x - 1)(x + 7)
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