Sagot :
Answer:
1. (ײ -×)+(8×-2ײ)
=x2+−x+8x+−2x2
=(x2+−2x2)+(−x+8x)
=−x2+7x
2. (4+2n³ +2)
4+2n3+2
=(2n3)+(4+2)
=2n3+6
5.(8n²-2n³)+(6n³-8n²)
=8n2+−2n3+6n3+−8n2
=(−2n3+6n3)+(8n2+−8n2)
=4n3
Sorry that's only i can do hope this helps :)
Step-by-step explanation:
Answer:
1. x×(-x+7)
2. 2(3+n³)
5. 4n³
6. 3x²-2x+2
7. 3m²+m+4n²
11. -5x³+5x²-1
12. 9x³+2
15. a³+2a²-8
19. a²-3
Step-by-step explanation:
sorry, I don't know the answer for number 16. hope this helps tho. I also simplified some equations.