When the square root of a number or term squared is taken, the answer simply comes out of the radicand. Sample: sqrt{(x + 1)^2} = x + 1 Can this be the reason? See below. sqrt{(x + 1)^2} = [(x + 1)^2]^(1/2). The exponents become 1: Exponents: 2 (1/2) = 1 Anything to the first power equals itself. Correct?