Solve........

y'+ y 2 = 1+x for the equation a special solution in the form of y= ax is searched and a general soluti- on is obtained with the help of this special solution. Accordingly, the equation given under the appropriate transformation transforms into one of the following? A ) u' + 2 xu = x B ) U' - 2xu = x2+1 c ) u'- 2 xu = 1 D ) ut 2 xu = 1 E ) u'tu=1