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Mathematics
Mathematics
Problem
If the difference between the roots of
x
2
+
a
x
+
b
=
0
x^2 + ax + b = 0
x
2
+
a
x
+
b
=
0
is same as that of
x
2
+
b
x
+
a
=
0
x^2 + bx + a = 0
x
2
+
b
x
+
a
=
0
,
a
≠
b
a \ne b
a
=
b
, then: (a)
a
+
b
+
4
=
0
a + b + 4 = 0
a
+
b
+
4
=
0
(b)
a
+
b
−
4
=
0
a + b - 4 = 0
a
+
b
−
4
=
0
(c)
a
−
b
−
4
=
0
a - b - 4 = 0
a
−
b
−
4
=
0
(d)
a
−
b
+
4
=
0
a - b + 4 = 0
a
−
b
+
4
=
0
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