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(1K) Factorising
x
2
+
b
x
+
c
Review of Factorizing
Expand
(
x
+
1
)
(
x
+
2
)
=
x
2
+
Check
x
+
Check
Check
Factorize
x
2
+
3
x
+
2
=
(
x
+
Check
)
(
x
+
Check
)
Check
Expand
(
x
−
5
)
(
x
+
3
)
=
x
2
−
Check
x
−
Check
Check
Factorize
x
2
−
2
x
−
15
=
(
x
−
Check
)
(
x
+
Check
)
Check
Expand
(
x
−
4
)
(
x
−
8
)
=
x
2
−
Check
x
+
Check
Check
Factorize
x
2
−
12
x
+
32
=
(
x
−
Check
)
(
x
−
Check
)
Check
Expand
(
x
+
7
)
(
x
−
2
)
=
Check
Check
Factorize
x
2
+
5
x
−
14
=
Check
Check
Expand
(
x
−
9
)
(
x
−
8
)
=
Check
Check
Factorize
x
2
−
17
x
+
72
=
Check
Check
Fully factorize:
x
2
+
5
x
+
4
Check
x
2
−
3
x
+
2
Check
x
2
+
x
−
42
Check
x
2
−
3
x
−
18
Check
Fully factorize:
x
2
−
49
Check
x
2
−
10
x
+
16
Check
x
2
−
8
x
+
7
Check
x
2
+
6
x
+
8
Check
x
2
−
36
Check
x
2
−
13
x
+
42
Check
x
2
−
6
x
+
8
Check
x
2
−
x
−
30
Check
x
2
+
2
x
−
48
Check
x
2
−
2
x
−
48
Check
x
2
+
5
x
−
24
Check
x
2
+
2
x
−
24
Check
x
2
+
2
x
−
15
Check
x
2
+
11
x
+
28
Check
x
2
+
5
x
+
4
Check
x
2
+
3
x
+
2
Check