Which notation correctly shows even objects taken four at a time?

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]

How many zeros does the function f(x)=4x3-x2+1 have

Which shows the pre image of triangle xyz