Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula? quadratic formula: x = startfraction negative b plus or minus startroot b squared minus 4 a c endroot over 2 a endfraction x = startfraction negative (negative 1) plus or minus startroot (negative 1) squared minus 4 (1)(negative 4) endroot over 2(1) endfraction x = startfraction negative 1 plus or minus startroot 1 squared minus 4 (negative 1)(negative 4) endroot over 2(negative 1) endfraction x = startfraction negative (negative 1) plus or minus startroot (negative 1) squared minus 4 (1)(negative 4) endroot over 2(1) endfraction x = startfraction negative (negative 1) plus or minus startroot (negative 1) squared minus 4 (1)(negative 2) endroot over 2(1) endfraction