Status: Waiting for your answers. Problem: Solve for the variable. Check a value if it is extraneous. √ b + 6 = b + 4 b + 6 = ( b + )2 b + 6 = b2 + b + 0 = b2 + b + 0 = ( b + )( b + ) b1 = b2 = extraneous extraneous