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Byju's Answer
Standard IX
Mathematics
Factor Theorem
Factorize: ...
Question
Factorize:
x
3
−
4
x
2
+
5
x
−
2
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Solution
Let
f
(
x
)
=
x
3
−
4
x
2
+
5
x
−
2
Sum of the coefficients
=
1
−
4
+
5
−
2
=
0
∴
(
x
−
1
)
is a factor.
Remainder
=
0
f
(
x
)
=
x
3
−
4
x
2
+
5
x
−
2
=
(
x
−
1
)
(
x
2
−
3
x
+
2
)
=
(
x
−
1
)
(
x
−
1
)
(
x
−
2
)
=
(
x
−
1
)
2
(
x
−
2
)
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