Es para hoy por fa ayuda :(​

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]

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Common binomial factor of 6x(3x+7)+5(3x+7)