The question is "subtract a number from half its square", you have subtracted half a number from its square.
http://i.imgur.com/XviXYODh.jpg
The question is #10,
I am really bad at word problems and having to create an equation on my own...
x^2 - 1/2x = 11
That is all I got and I am pretty sure I am wrong, I didn't go further with that equation I made...
The answer to this question is -3.80 and 5.80.
Any help would be great, thanks!