Status: Waiting for your answers. Problem: Solve for the variable. Check a value if it is extraneous. √ x + 30 = x + 10 x + 30 = ( x + )2 x + 30 = x2 + x + 0 = x2 + x + 0 = ( x + )( x + ) x1 = x2 = extraneous extraneous