4x^2+x-3 = 0
D = b^-4ac
D= 1-4*4*(-3)
D= 49
x1,2= -b+-корень(D) / 2a
x1 = -1 + 7 / 8 = 6/8 = 3/4
x2 = -1 -7 / 8 = -8/8 = -1
ответ: 3/4(или 0,75) и -1
4x^2+x-3 = 0
D = b^-4ac
D= 1-4*4*(-3)
D= 49
x1,2= -b+-корень(D) / 2a
x1 = -1 + 7 / 8 = 6/8 = 3/4
x2 = -1 -7 / 8 = -8/8 = -1
ответ: 3/4(или 0,75) и -1