Assuming that you want this simplified...
Use the FOIL method and combine like terms:
And your final answer is: 
The Supreme Court case that found the use of the grandfather clause unconstitutional is the Guinn v. United States, 238 U.S. 347 (1915). In its decision, the Supreme Court ruled that the grandfather clause<span> exemptions to </span>literacy tests<span> were unconstitutional. It declared the grandfather clauses as </span><span>repugnant to the Fifteenth Amendment and therefore null and void.</span>
I think you forgot to add some details but based on my research, the correct answers are Rhode Island, Delaware, and Georgia. These states would probably oppose a system wherein the number of votes each state had in the nation's legislature will be based on the state's population. These states will oppose because they are less populous. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
I think it would be the treaty of Paris in 1763?
