jtobin2003 jtobin2003 28-12-2018 Mathematics contestada Solve x^2 + 6x + 7 = 0. A) x = −1 and x = −5 B) 3 plus or minus square root of 2 C) negative 3 plus or minus square root of 2 D) quantity of negative 3 plus or minus square root of 2 all over 2