Polynomial Multiplication
(
-9
x
2
+
5
x
-
3
)
(
-4
x
2
+
x
-
4
)
=
(
-9
x
2
)
(
-4
x
2
+
x
-
4
)
+
(
5
x
)
(
-4
x
2
+
x
-
4
)
+
(
-3
)
(
-4
x
2
+
x
-
4
)
=
(
-9
x
2
)
(
-4
x
2
)
+
(
-9
x
2
)
(
x
)
+
(
-9
x
2
)
(
-4
)
+
(
5
x
)
(
-4
x
2
)
+
(
5
x
)
(
x
)
+
(
5
x
)
(
-4
)
+
(
-3
)
(
-4
x
2
)
+
(
-3
)
(
x
)
+
(
-3
)
(
-4
)
=
36
x
4
-
9
x
3
+
36
x
2
-
20
x
3
+
5
x
2
-
20
x
+
12
x
2
-
3
x
+
12
=
(
36
x
4
)
+
(
-9
x
3
-
20
x
3
)
+
(
36
x
2
+
5
x
2
+
12
x
2
)
+
(
-20
x
-
3
x
)
+
(
12
)
=
36
x
4
-
29
x
3
+
53
x
2
-
23
x
+
12
Show another example
Some steps shown in the examples may not be necessary.
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me
.
Copyright © Dayal D. Purohit, Ph.D.(Mathematics)