In order to factore it u have to set the first term seperate
E.J.
(x )(x ), now the 2 signs are positive so the signs inside are positive as well
(x+ )(x+ ), now divide 15 in 2 numbers that can be multiplied to get 15 and added or subtracted to get 8, 5 times 3 equals 15 and when u add them you get 8 so this ones are good, so your factors would be
(x+3)(x+50
Hope this helps
