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Byju's Answer
Standard VII
Mathematics
Index and Base
Arrange x2 ...
Question
Arrange
x
2
+
x
5
+
2
x
3
−
2
+
3
x
in descending powers of
x
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Solution
Descending numbers means numbers from highest to lowest.
Now, we have to arrange
x
2
+
x
5
+
2
x
3
−
2
+
3
x
in descending powers of
x
that is we have to arrange the powers of
x
from highest to lowest as shown below:
x
5
+
2
x
3
+
x
2
+
3
x
−
2
Hence, the descending order of powers of
x
is
x
5
+
2
x
3
+
x
2
+
3
x
−
2
.
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Similar questions
Q.
Arrange
x
8
+
x
+
x
12
−
3
x
7
+
x
9
+
1
in descending powers of
x
Q.
Arrange
x
2
y
6
+
x
5
y
2
+
x
6
y
4
+
3
x
2
y
8
in descending powers of
x
:
Q.
Find the polynomial from the given
information.
Quotient
=
x
3
+
2
x
Divisor
=
x
2
+
1
2
x
Remainder
=
5
Q.
Match the following.
Column - I
Column - II
(P)
(
x
2
+
5
)
(
x
3
+
3
)
+
5
(1)
−
x
3
−
3
x
2
+
3
x
+
2
(Q)
(
−
10
3
x
y
3
)
×
(
6
5
x
3
y
)
(2)
−
x
3
+
x
2
+
3
x
−
6
(R)
(
x
3
−
x
2
−
x
−
2
)
−
(
2
x
3
+
2
x
2
−
4
x
−
4
)
(3)
x
5
+
5
x
3
+
3
x
2
+
20
(S)
(
x
3
−
x
2
−
x
−
2
)
+
(
2
x
2
−
2
x
3
+
4
x
−
4
)
(4)
−
4
x
4
y
4
Q.
Let
f
(
x
)
=
x
5
+
2
x
3
+
3
x
+
4
then find the value of
28
d
d
x
(
f
′
(
x
)
)
at
x
=
−
2
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