Factoring by groups
(
8
x
-
6
)
(
8
x
2
+
4
x
-
6
)
+
(
8
x
-
6
)
(
x
2
+
3
x
-
6
)
=
(
8
x
-
6
)
[
(
8
x
2
+
4
x
-
6
)
+
(
x
2
+
3
x
-
6
)
]
(
8
x
-
6
)
[
(
8
x
2
+
x
2
)
+
(
4
x
+
3
x
)
+
(
-6
-
6
)
]
=
(
8
x
-
6
)
(
9
x
2
+
7
x
-
12
)
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)