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Byju's Answer
Standard XII
Mathematics
Multinomial Expansion
Find if polyn...
Question
Find if polynomial
x
4
−
3
x
3
+
7
x
2
−
8
x
+
12
is exactly divisible by
x
2
−
2
x
+
2
.
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Solution
x
4
−
3
x
3
+
7
x
2
−
8
x
+
12
x
2
−
2
x
+
2
=
x
2
+
−
x
3
+
5
x
2
−
8
x
+
12
x
2
−
2
x
+
2
=
x
2
−
x
+
3
x
2
−
6
x
+
12
x
2
−
2
x
+
2
=
x
2
−
x
+
3
+
6
x
2
−
2
x
+
2
∴
(
x
4
−
3
x
3
+
7
x
2
−
8
x
+
12
)
(
x
2
−
2
x
+
2
)
=
x
2
−
x
+
3
+
6
x
2
−
2
x
+
2
It's not a perfect division.
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0
Similar questions
Q.
If a polynomial
x
4
−
5
x
3
+
x
2
+
k
x
−
12
is exactly divisible by
x
2
−
5
x
+
4
, then find the value of k.
Q.
Find the value of
a
and
b
so the polynomial
(
x
4
+
a
x
3
−
7
x
2
−
8
x
+
b
)
exactly divisible by
(
x
+
2
)
as well
(
x
+
3
)
.
Q.
Find all zeroes of the polynomial if
2
of its zeroes are
±
√
3
.
f
(
x
)
=
x
4
−
3
x
3
−
7
x
2
+
12
Q.
Find the polynomial which is to be added to
P
(
x
)
=
x
4
+
2
x
3
−
2
x
2
+
x
−
1
, so that the resulting polynomial is exactly divisible by
x
2
+
2
x
−
3
Q.
Find the zeroes of the polynomials.
x
4
−
2
x
3
−
7
x
2
+
8
x
+
12
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