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Byju's Answer
Standard VIII
Mathematics
Simplification of an Expression
Simplify each...
Question
Simplify each of the following products:
(
x
2
−
2
5
)
(
2
5
−
x
2
)
−
x
2
+
2
x
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Solution
(
x
2
−
2
5
)
(
2
5
−
x
2
)
−
x
2
+
2
x
=
x
2
(
2
5
−
x
2
)
−
2
5
(
2
5
−
x
2
)
−
x
2
+
2
x
=
x
5
−
x
2
4
−
4
25
+
x
5
−
x
2
+
2
x
=
−
x
2
4
−
x
2
+
2
x
5
+
2
x
−
4
25
=
−
x
2
−
4
x
2
4
+
2
x
+
10
x
5
−
4
25
=
−
5
x
2
4
+
12
x
5
−
4
25
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2
Similar questions
Q.
Simplify each of the following products:
i)
(
m
+
n
7
)
3
(
m
−
n
7
)
ii)
(
x
2
−
2
5
)
(
2
5
−
x
2
)
−
x
2
+
2
x
Q.
Simplify each of the following products:
(i)
x
2
-
2
5
2
5
-
x
2
-
x
2
+
2
x
(ii)
x
2
+
x
-
2
x
2
-
x
+
2
(iii)
x
3
-
3
x
2
-
x
x
2
-
3
x
+
1
(iv)
2
x
4
-
4
x
2
+
1
(
2
x
4
-
4
x
2
-
1
)