The geometric mean of 2 positive numbers is the square root of their product of the 2 numbers. what is the geometric mean of 4 and 49

Do 12/14 and 8/10 have the same value? explain your answer.

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]

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.