Direction for questions bo to 60
Passage-1
Roots of the quadratic equation of the type (ax
+ b) (cx + a) = 0 are given by the linear
equations ax + b = 0 and cx + d = 0
Find roots of the quadratic equation 3x2 – 2root6
X + 2 = 0
Question Type: Single Correct Type
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Answers
Answered by
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Answer:
Explanation:
note:
for this problem we will use the property of the sum and product of roots of a quadratic
that is
if
α
&
β
are the roots of
p
x
2
+
q
x
+
r
=
0
then
α
β
=
−
q
p
α
β
=
r
p
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x
2
+
a
x
+
b
=
0
−
−
−
(
1
)
x
2
+
c
x
+
d
=
0
−
−
−
(
2
)
let the common root be
α
for eqn
(
1
)
α
+
α
=
−
a
⇒
α
=
−
a
2
&
α
2
=
b
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