Answer:
3(2*-1)^2
solved is: 12
Step-by-step explanation:
Answer:
6a^2
Step-by-step explanation:
Answer:
13x-2
Step-by-step explanation:
1) distribute the negative sign to each term in the second parentheses
(7x-10)-(-6x-8)
7x-10+6x+8
2) combine like terms
7x+6x= 13x
-10+8=-2
13x-2
Hope this helps!
Answer:

Step-by-step explanation:
Distance covered by the train in crossing the pole = 100 m.






- Hence, the speed of the train is 72 km/h
Sorry i messed up at first i think it actually is 50.3
Step-by-step explanation: