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Byju's Answer
Standard VIII
Mathematics
Simplification of an Expression
Form the sum ...
Question
Form the sum of
3
x
2
+
2
2
,
−
x
2
−
4
y
2
+
4
x
y
and
6
x
y
+
2
x
2
−
3
y
2
subtract
−
5
x
2
+
2
y
2
−
3
x
y
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Solution
(
3
x
2
+
2
2
)
+
(
−
x
2
−
4
y
2
+
4
x
y
)
+
(
6
x
y
+
2
x
2
−
3
y
2
)
−
(
−
5
x
2
+
2
y
2
−
3
x
y
)
=
(
4
x
2
−
7
y
2
+
10
x
y
+
4
)
−
(
−
5
x
2
+
2
y
2
−
3
x
y
)
=
9
x
2
−
9
y
2
+
13
x
y
+
4
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0
Similar questions
Q.
From the sum of x
2
+ 3y
2
− 6xy, 2x
2
− y
2
+ 8xy, y
2
+ 8 and x
2
− 3xy subtract −3x
2
+ 4y
2
− xy + x − y + 3.
Q.
From the sum of
3
y
2
−
5
x
2
−
3
y
x
and
3
x
2
−
3
y
2
+
4
x
y
−
1
subtract the sum of
11
x
2
−
2
y
2
−
3
x
y
.
Write the expression one below the corner for adding and subtracting.
Q.
How much more than
2
x
2
+
4
x
y
+
2
y
2
is
5
x
2
+
10
x
y
−
y
2
?
State True or False: T
he answer is
3
x
2
+
6
x
y
−
3
y
2
.
Q.
What should be subtracted from
2
x
2
−
4
y
2
+
6
x
y
+
10
to obtain
−
2
x
2
−
3
y
2
+
6
x
y
+
10
?
Q.
(
2
x
2
−
3
y
2
)
+
(
5
x
2
+
6
x
2
)
+
(
−
3
x
2
−
4
y
2
)
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Simplification of an Expression
Standard VIII Mathematics
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