The expression 2x^2 + 8x can be factored by taking out the common factor 2x, resulting in 2x(x + 4).

The expression 3x^2 - 12 can be factored by taking out the common factor 3, resulting in 3(x^2 - 4), which further factors to 3(x - 2)(x + 2).

The expression 4x^2 - 25 is a difference of squares, which factors to (2x - 5)(2x + 5).

The expression x^2 + 3x - 10 factors to (x + 5)(x - 2) since 5 and -2 add to 3 and multiply to -10.

The expression x^2 + 5x + 6 factors to (x + 2)(x + 3) since 2 and 3 add to 5 and multiply to 6.

The expression x^2 + 7x + 10 factors to (x + 5)(x + 2) since 5 and 2 add to 7 and multiply to 10.

The expression x^2 - 4x + 4 is a perfect square trinomial and factors to (x - 2)(x - 2) or (x - 2)^2.

The expression x^2 - 6x + 9 is a perfect square trinomial and factors to (x - 3)(x - 3) or (x - 3)^2.

The expression x^2 - 9 is a difference of squares, which factors to (x - 3)(x + 3).