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


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Problem: Solve for the variable. Check a value if it is extraneous.
 
z - 2  = z - 4
 
z - 2 = ( z + )2
 
z - 2 = z2 + z +
 
0 = z2 + z +
 
0 = ( z + )( z + )
 
z1 =     z2 =
extraneous   extraneous