8
8
8
'
9
54
5 12
13
-
Eri
4a =
1
6x13x2 4x 1)
i
- +
=
6x(3x2 -
3x -
x
+
1)
6x(3x(x -
1) 1(x
-
-
1))
6x(x 1)(3x -
1) 3
100
6 =
/36 +
44
65645531255
n
=
5
x f (x)
0.25
2 4
3 6
0.25
0.75
1.25
A
the
150
11
*
=
-
2x
+
9x -
18
=
4x +
36
x +
3x -
54
=
x -
6x +
9x -
54 =
0
x(x 6) - +
9(x 6) -
=
(x 9)(x
+
-
6) =
x =
6 and -
9
1 5
.
2x =
4-y 10
- -
4y 10
5y 5 5
-
- + =
15 5
y
=
.
50
20x3 +
45x2
20 +
45
=
65
18