Page 293 - KM Matematika_BS_KLS_IX

5 (10x + 7)(10x – 7)
5 –3a + 15ab – 3a
2
6 9a + 6a 7 2x – 9 6 (4 + 5x)(4 – 5x)
2
7 (2x + 7y)(2x – 7y)
8 5a + b 9 4a – b
y
10 –4x – 3y 11 9y – 6 8 x + m y
x - m
c
c 3 3
2 1 ab + 2a + 8b + 16 9 a (x + y)(x – y) 10 a (x + 1) 2
2 xy + 6x – 7y – 42 11 3(x – 3y) 2 12 2y (x + 5)(x – 3)
2
3 2a – 17a + 8 4 6x + 14x + 4 13 (x + 6)(x – 3) 14 (x – 3)(x – 4)
2
2
5 –2a + 17ab – 30b 2 15 (x + 3) 2 16 (x + 3)(x – 6)
6 –49x + 7xy + 6y 2 17 (x + 3)(x + 1) 18 (a – b)(x + y)
2
7 ax – ay + 5a + bx – by + 5b 19 (x + 6)(x – 1) 20 x (x – 10)
8 ax + 2ay – 3a – 2bx – 4by + 6b 21 (x + 1)(y – 5) 22 (x + 1)(2y – 3)
2
2
9 x –y – 3x + 3y
3 Pernyataan Bentuk Akar
2
2
10 2a + 5ab – 3b – 4a – 12b 3 Hlm.56
3 1 x + 10x + 21 2 x – 9x + 20
2
2
1 1 26 2 6 3 12 4 5
3 x – x – 90 4 x + 5x – 6 15 2
2
2
5 810 6 - 12 5 7
2
2
5 x + 8x + 16 6 x – 20x + 100 2
8 3 3 9 2 6 10 2 3
2
7 a – 2ab + b 2 8 x + 2 x + 1
2
3 9 2 1 7 5 2 5 - 7 3 4 2
2
2
9 x – 1 10 a – 81
4 - 32 + 56 5 4 7
2
11 36 – x 2 12 x - 25 6 2 2 7 0 8 5 5
16
4 1 4x – 49 2 9a + 30a + 25 9 5 2 10 - 6 11 215
2
2
12
2
3 16x – 24xy + 9y 2 7 2
3 1 3 6 2 3 3 3 5 6 2
-
2
4 4a + 18a + 18
4 3 7 5 17 + 7 7
5 x – 2xy + y – 64
2
2
6 53 + 3 7 11 7 5
-
2
6 a + 2ab + b – 7a – 7b + 10
2
8 –71 9 6 10 3
2
2
7 a – b + 8b – 16
11 16 + 6 7 12 84 3
-
8 10x + 9 9 a 2
-
13 8 + 6 3 14 43 30 2
10 7x + 16 11 8ab
15 22 16 7 17 2 2
2 Hlm.24 3
2 Memfaktorkan
18 - 3 - 2 19 6
1 1 x (y + 4) 2 a (5x – 8y + 2)
4 Penyelesaian Persamaan Kuadrat Hlm.78
4
3 x (x + 7) 4 xy (2x – 3y)
5 3a (2a + 3b) 6 5x (2x – 5y + 1) 1 1 x = 3, x = –9 2 x = –1, x = –5
2 1 (x + 1)(x + 5) 2 (x + 3)(x + 7) 3 x = 3, x = –8 4 x = –3, x = –8
3 (x – 1)(x – 6) 4 (x – 3)(x – 9) 5 x = 3, x = 5 6 x = –4
5 (x + 4)(x – 2) 6 (x + 2)(x – 5) 7 x = 6 8 x = 7, x = –6
7 (x + 1)(x – 2) 8 (x + 9)(x – 5) 9 x = 0, x = –1 10 x = ±6
9 (x + 7) 2 10 (x + 8) 2 11 x = 7, x = –5 12 x = 5
11 (x – 5) 2 12 (x – 10) 2 13 x = 2, x = 3 14 x = 4, x = –1
13 (x + 1)(x – 1) 14 (x + 8)(x – 8) 15 x = 6, x = –1 16 x = 4, x = 7
3 1 (2x + 3) 2 2 (3x – 1) 2 17 x = ±1 18 x = 6, x = –7
3 (x – y) 2 4 (x + 4y) 2
Jawaban 275