Multiplication of Polynomials
(
-6
x
2
-
9
x
+
6
)
(
-3
x
2
+
2
x
+
6
)
=
(
-6
x
2
)
(
-3
x
2
+
2
x
+
6
)
+
(
-9
x
)
(
-3
x
2
+
2
x
+
6
)
+
(
6
)
(
-3
x
2
+
2
x
+
6
)
=
(
-6
x
2
)
(
-3
x
2
)
+
(
-6
x
2
)
(
2
x
)
+
(
-6
x
2
)
(
6
)
+
(
-9
x
)
(
-3
x
2
)
+
(
-9
x
)
(
2
x
)
+
(
-9
x
)
(
6
)
+
(
6
)
(
-3
x
2
)
+
(
6
)
(
2
x
)
+
(
6
)
(
6
)
=
18
x
4
-
12
x
3
-
36
x
2
+
27
x
3
-
18
x
2
-
54
x
-
18
x
2
+
12
x
+
36
=
(
18
x
4
)
+
(
-12
x
3
+
27
x
3
)
+
(
-36
x
2
-
18
x
2
-
18
x
2
)
+
(
-54
x
+
12
x
)
+
(
36
)
=
18
x
4
+
15
x
3
-
72
x
2
-
42
x
+
36
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)