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Byju's Answer
Standard VII
Mathematics
Addition of Algebraic Expressions
Simplify: 7x+...
Question
Simplify:
7
x
+
4
x
3
+
3
x
+
2
−
3
x
−
2
x
3
+
3
x
+
2
(
2
m
a
r
k
s
)
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Solution
7
x
+
4
x
3
+
3
x
+
2
−
3
x
−
2
x
3
+
3
x
+
2
=
7
x
+
4
−
3
x
+
2
x
3
+
3
x
+
2
(
1
m
a
r
k
)
=
4
x
+
6
x
3
+
3
x
+
2
(
1
m
a
r
k
)
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Similar questions
Q.
Identify polynomials in the following:
(i) f(x) = 4x
3
− x
2
− 3x + 7
(ii) g(x) = 2x
3
− 3x
2
+
x
− 1
(iii) p(x) =
2
3
x
2
-
7
4
x
+
9
(iv) q(x) = 2x
2
− 3x +
4
x
+ 2
(v) h(x) =
x
4
-
x
3
2
+
x
-
1
(vi) f(x) =
2
+
3
x
+
4
x