Question 182181
Find the real solutions of each equation. 
31. the sqrt of 10 + 3 and within this sqrt is the sqrt of x = the sqrt of x 
I'm not sure what that means.
-----------------------------
33. (3x +1) to the power of 1/2 = 4 
{{{sqrt(3x+1) = 4}}}
Square
3x+1 = 16
x = 5
------------
39. x to the power of 3/2 - 3x to the power of 1/2 = 0
{{{x^(3/2) - 3x^(1/2) = 0}}}
{{{x^(3/2) = 3x^(1/2)}}}
Square
{{{x^3 = 9x}}}
{{{x^2 = 9}}}
x = 3, x = -3 (-3 involves complex roots)