Addition and Subtraction of Polynomials
(
-7
x
3
-
5
x
2
+
5
x
+
6
)
-
(
-9
x
3
+
2
x
2
-
7
x
+
7
)
+
(
7
x
3
-
2
x
2
-
10
x
+
9
)
=
-7
x
3
-
5
x
2
+
5
x
+
6
+
9
x
3
-
2
x
2
+
7
x
-
7
+
7
x
3
-
2
x
2
-
10
x
+
9
=
(
-7
x
3
+
9
x
3
+
7
x
3
)
+
(
-5
x
2
-
2
x
2
-
2
x
2
)
+
(
5
x
+
7
x
-
10
x
)
+
(
6
-
7
+
9
)
=
9
x
3
-
9
x
2
+
2
x
+
8
Algebra
Analytic Geometry
Differential Calculus
Integral Calculus
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)