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Byju's Answer
Standard VIII
Mathematics
Division of a Polynomial by a Polynomial
Fill in the b...
Question
Fill in the blanks.
(
i
)
(
5
x
2
+
20
x
)
÷
5
x
=
_____________
(
i
i
)
(
5
x
2
+
20
x
)
÷
(
x
+
4
)
=
____________
[2 marks]
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Solution
We can write,
(
5
x
2
+
20
x
)
=
(
5
x
×
x
+
4
×
5
x
)
(
5
x
2
+
20
x
)
=
5
x
(
x
+
4
)
[1 mark]
So,
(
5
x
2
+
20
x
)
÷
5
x
=
(
5
x
2
+
20
x
)
5
x
=
5
x
(
x
+
4
)
5
x
=
(
x
+
4
)
[0.5 mark]
(
5
x
2
+
20
x
)
÷
(
x
+
4
)
=
(
5
x
2
+
20
x
)
(
x
+
4
)
=
5
x
(
x
+
4
)
(
x
+
4
)
=
5
x
[0.5 mark]
Therefore,
(
i
)
(
5
x
2
+
20
x
)
÷
5
x
=
(
x
+
4
)
(
i
i
)
(
5
x
2
+
20
x
)
÷
(
x
+
4
)
=
5
x
Suggest Corrections
2
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Q.
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5
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is ______________________________.
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