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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

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