What does c=
X2 + 10x + 14 = 0

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.

Maybe fx = lxl because of the way the x is positioned is that what he

The answer is poppy pants69