Question

Tolong bantu jawab semuanya ya please ..
1. 2x(-1) = ......
2. 2x(-2) = ......
3. 2x(-3) = ......
4. 2x(-4) = ......
5. -1x3 = .....
6. -2x3 = .....
7. -3x3 = .....
8. -4x3 = .....
9. 4x(-1) = .....
10. 3x(-1) = .....
11. 2x(-1) = .....
12. 1x(-1) = .....
13. 0x(-1) = .....
14. -1x(-1) = .....
15. -2x(-1) = .....
16. -3x(-1) = .....
17. -4x(-1) = ......

Answer 1

Rumusnya :
(+) x (+) = (+)
(-) x (-) = (+)
(+) x (-) = (-)
(-) x (+) = (-)

Answer 2

1.2x(-1) = -2
  2. 2x(-2) = -4
  3. 2x(-3) = -6
 4. 2x(-4) = -8
  5. -1x3 = -3
6. -2x3 = -6
 7. -3x3 = -9
8. -4x3 = -12
  9. 4x(-1) = -4
10. 3x(-1) = -3
11. 2x(-1) = -2
12. 1x(-1) = -1
13. 0x(-1) = 0
14. -1x(-1) = 1
 15. -2x(-1) = 2
 16. -3x(-1) = 3
17. -4x(-1) = . 4 

(+) × (-) = (-)
(-) × (+) = (-)
 (-) × (-) = (+ )
 (+) × (+) = (+)