Factoring by groups
(
x
+
2
)
(
6
x
2
+
5
x
+
8
)
+
(
x
+
2
)
(
6
x
2
-
x
+
3
)
=
(
x
+
2
)
[
(
6
x
2
+
5
x
+
8
)
+
(
6
x
2
-
x
+
3
)
]
(
x
+
2
)
[
(
6
x
2
+
6
x
2
)
+
(
5
x
-
x
)
+
(
8
+
3
)
]
=
(
x
+
2
)
(
12
x
2
+
4
x
+
11
)
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Analytic Geometry
Differential Calculus
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Copyright © Dayal D. Purohit, Ph.D.(Mathematics)