Multiplication of Polynomials
(
-5
x
2
-
7
x
+
6
)
(
-4
x
2
+
7
x
)
=
(
-5
x
2
)
(
-4
x
2
+
7
x
)
+
(
-7
x
)
(
-4
x
2
+
7
x
)
+
(
6
)
(
-4
x
2
+
7
x
)
=
(
-5
x
2
)
(
-4
x
2
)
+
(
-5
x
2
)
(
7
x
)
+
(
-7
x
)
(
-4
x
2
)
+
(
-7
x
)
(
7
x
)
+
(
6
)
(
-4
x
2
)
+
(
6
)
(
7
x
)
=
20
x
4
-
35
x
3
+
28
x
3
-
49
x
2
-
24
x
2
+
42
x
=
(
20
x
4
)
+
(
-35
x
3
+
28
x
3
)
+
(
-49
x
2
-
24
x
2
)
+
(
42
x
)
=
20
x
4
-
7
x
3
-
73
x
2
+
42
x
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)