Solving Radical Equations 2 with Help
View the Lesson | MATHguide homepage Updated June 22nd, 2023

Status: Waiting for your answers.





Problem: Solve for the variable. Check a value if it is extraneous.
 
√ u + 30  = u + 10
 
u + 30 = ( u + )2
 
u + 30 = u2 + u +
 
0 = u2 + u +
 
0 = ( u + )( u + )
 
u1 =     u2 =
extraneous   extraneous