Expand the following products

(x + 7) (x + 5) = x2 + x +
(x + 6) (x + 8) = x2 + x +
(x + 4) (x + 5) = x2 + x +
(x + 3) (x + 1) = x2 + x +
(x + 7) (x + 3) = x2 + x +
(x + 2) (x + 1) = x2 + x +
(x + 5) (x + 4) = x2 + x +
(x + 4) (x + 4) = x2 + x +

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