Question

I need help solving this math problem. The teacher wants us to fill in three things using this math equation: 2x - 3√x + 1 = 0

(1) u=_

(2) u^2=_

(3) _u^2+_u+1=0

The teacher wants us to accomplish this using the U-Substitution method.

Answer 1

I'm not sure for my awnser but I thing 30