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Byju's Answer
Standard X
Mathematics
Factorisation of Quadratic Polynomials
Solve the giv...
Question
Solve the given quadratic equation by factorisation method,
√
5
x
2
+
2
x
=
3
√
5
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Solution
The given quadratic equation
√
5
x
2
+
2
x
=
3
√
5
can be factorised as follows:
√
5
x
2
+
2
x
=
3
√
5
⇒
√
5
x
2
+
2
x
−
3
√
5
=
0
⇒
√
5
x
2
+
5
x
−
3
x
−
3
√
5
=
0
⇒
√
5
x
(
x
+
√
5
)
−
3
(
x
+
√
5
)
=
0
⇒
(
√
5
x
−
3
)
=
0
,
(
x
+
√
5
)
=
0
⇒
√
5
x
=
3
,
x
=
−
√
5
⇒
x
=
3
√
5
,
x
=
−
√
5
Hence,
x
=
3
√
5
or
x
=
−
√
5
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