Solve: 3x − 7 (sqrt x) + 2 = 0

3x − 7 (sqrt x) + 2 = 0

-7(sqrt x) = -3x - 2
divide both sides by -7
(sqrt x) = 1/7(3x + 2)
square both sides
x = 1/49 (3x + 2)^2

expand the right side
you will have a quadratic equation that can be solved either by completing the square or using the quadratic formula