Which shows the correct substitution of the values a, b, and c from the equation 0 = 4x2 + 2x - 1 into the quadratic formula
below?
quadratic formula: x = -by
2a
x= -2=22 - 4(4)(– 1)
2(4)
x=-2/22 - 4(4)(1)
2(4)
y=-2/22 +4(4)( - 1)
2(4)
-2 +/-2² – 4(4) (-1)
2(4)