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Byju's Answer
Standard VII
Mathematics
Subtraction of Algebraic Expressions
Subtract the ...
Question
Subtract the sum of 2x − x
2
+ 5 and − 4x − 3 + 7x
2
from 5.
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Solution
We have to subtract the sum of (2x
−
x
2
+ 5) and (
−
4
x
− 3 +
7
x)
from 5.
5
-
2
x
-
x
2
+
5
+
-
4
x
-
3
+
7
x
2
=
5
-
2
x
-
4
x
-
x
2
+
7
x
2
+
5
-
3
=
5
-
2
x
+
4
x
+
x
2
-
7
x
2
-
5
+
3
=
5
-
5
+
3
-
2
x
+
4
x
+
x
2
-
7
x
2
(Collecting like terms)
=
3
+
2
x
-
6
x
2
(Combining like terms)
Thus, the answer is
3
+
2
x
-
6
x
2
.
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Similar questions
Q.
From the sum of
4
+
3
x
and
5
−
4
x
+
2
x
2
, subtract the sum of
3
x
3
−
5
x
and
−
x
2
+
2
x
+
5
Q.
From the sum of
4
+
3
x
and
5
–
4
x
+
2
x
2
, subtract the sum of
3
x
2
–
5
x
and
–
x
2
+
2
x
+
5
. What is the final result?
Q.
From the sum of
4
+
3
x
a
n
d
5
−
4
x
+
2
x
2
, subtract the sum of
3
x
2
−
5
x
a
n
d
−
x
2
+
2
x
+
5
. [4 MARKS]
Q.
Form the sum of
(
4
+
3
x
−
x
2
)
and
(
5
−
4
x
+
2
x
2
)
, subtract the sum of
(
3
x
2
−
5
x
)
and
(
−
x
2
+
2
x
+
5
)
.
Q.
Question 6 (b)
From the sum of
4
+
3
x
a
n
d
5
−
4
x
+
2
x
2
, subtract the sum of
3
x
2
−
5
x
a
n
d
−
x
2
+
2
x
+
5
.
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