√a²-b² +√2ab-b² >a giúp với h

Need this asap if anyone can i would be very grateful. if you could show workings that would really

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Someone answer this check out the image!