I start my Ap Cal class tomarrow and our summer homework included some problems I just cannot figure out, any help would be amazing!

~factor and simplify. express answer as a fraction withought neg. exponiets

x(9x-10)^-1/2 + 2(x-1)^1/2

~Another one is this... I thnk you may have to use compleating the squares but couldnt figure it out)

x^2-x=5