Which of the following are solutions to the equation below ​

What is the vertex form of f(x) = x2 + 6x + 3

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

How is the number of vertices for a prism related to the name of the prism