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Byju's Answer
Standard VIII
Mathematics
Addition and Subtraction of Algebraic Expression
Subtract the ...
Question
Subtract the second expression from the first:
5
x
2
−
6
x
y
+
2
and
3
x
2
+
10
x
y
−
8
.
A
x
2
−
16
x
y
−
10
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B
2
x
2
+
86
x
y
+
10
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C
x
2
−
8
x
y
−
50
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D
2
x
2
−
16
x
y
+
10
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Solution
The correct option is
D
2
x
2
−
16
x
y
+
10
(
5
x
2
−
6
x
y
+
2
)
−
(
3
x
2
+
10
x
y
−
8
)
=
5
x
2
−
6
x
y
+
2
−
3
x
2
−
10
x
y
+
8
=
2
x
2
−
16
x
y
+
10
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0
Similar questions
Q.
Subtract the second expression from the first:
(i) 5x
2
-
6xy + 2; 3x
2
+ 10xy -8
(ii) m
2
n
-
8 + mn
2
; 7
-
m
2
n
-
mn
2
(iii) 5x
2
+ 4y
2
-
6y + 8; x
2
-
5y
2
+ 2xy + 3y
-
10
Q.
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
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.
Expand
(
2
x
+
4
y
)
2
using algebraic identity.
Q.
Simplify the following expression:
(
x
+
2
y
)
(
4
x
−
y
)
+
(
2
x
−
y
)
(
y
−
x
)
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