Please answer this mathematical problem.

Need ! give step by step solutions on how to solve number one [tex]\frac{9-2\sqrt{3} }{12+\sqrt{3} }[/tex] number two [tex]x+4=\sqrt{13x-20}[/tex] number three (domain and range) [tex]f(x)=2\sqrt[3]{x} +1[/tex]

Can (2,3 and square root 10) be sides ona right triangle?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2