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Byju's Answer
Standard IX
Mathematics
Long Division Method to Divide Two Polynomials
If 2x4-5x3+...
Question
If
2
x
4
−
5
x
3
+
2
x
2
−
x
+
a
is exactly divisible by
x
2
−
3
x
+
2
. Find
a
Open in App
Solution
Let us first divide
2
x
4
−
5
x
3
+
2
x
2
−
x
+
a
by
x
2
−
3
x
+
2
as shown in the above image.
From the division, we observe that
2
x
2
+
x
+
1
is the quotient and
a
−
2
is the remainder.
Now, to find the value of
a
, we equate the remainder to
0
as shown below:
a
−
2
=
0
⇒
a
=
2
Hence,
a
=
2
.
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0
Similar questions
Q.
Without actual division. prove that
2
x
4
−
5
x
3
+
2
x
2
−
x
+
2
is divisible by
x
2
−
3
x
+
2
Q.
Question 4
Without actual division , prove that
2
x
4
–
5
x
3
+
2
x
2
−
x
+
2
is divisible by
x
2
−
3
x
+
2
.
Q.
Question 4
Without actual division , prove that
2
x
4
–
5
x
3
+
2
x
2
−
x
+
2
is divisible by
x
2
−
3
x
+
2
.
Q.
If
f
(
x
)
=
2
x
4
−
5
x
3
+
x
2
+
3
x
−
2
is divisible by
g
(
x
)
the quotient is
q
(
x
)
=
2
x
2
−
5
x
+
3
and
r
(
x
)
=
−
2
x
+
1
find
g
(
x
)
.
Q.
What must be added to
2
x
4
−
5
x
3
+
2
x
2
−
x
−
3
so that the result is exactly divisible by (x- 2)?
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