Tolong dibantu bang​

1. 2a³b

2. 125p^12q^6r^9

3. (5x-7)(5x-7)=

25x²-35x-35x+49=

25x²-70x+49

4. x+3

5. pq-3pqr=

3(2)-3(3)(2)(-6)=

6-(-108)=

114

6. 8z²q/9rs²:4r³s³/3pq=

8z²q/9rs²×3pq/4r³s³=

24pq²z²/36r⁴s^5=

2pq²z²/3r⁴s^5

7. 6p²+10p+9p+15=

6p²+19p+15

8. 6/6x+3/6x+1/6x=

10/6x=

5/3x

9. 128x³y⁴z²/1080x³y^5z⁴=

16x³y⁴z²/135x³y^5z⁴