Use the quadratic formula to find the exact solutions of x2 + 7x − 4 = 0.
x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a
x equals negative 7 plus or minus the square root of 33, all over 2
x equals negative 7 plus or minus the square root of 65, all over 2
x equals 7 plus or minus the square root of 65, all over 2
x equals 7 plus or minus the square root of 33, all over 2