Answer:
It is(-1,5)
Step-by-step explanation:
You just divide the (-3,15) by 3 and you get your answer.
Answer:

Step-by-step explanation:
To complete the square: add 4 to both sides because the product of 4 as 2 as the factor which 2 * 2 so 



Now we can factor the expression

Move the 4 to the other side to isolate y which changes the sign
Answer:
no solution
Step-by-step explanation: because if it has no variables that are the same it has no solution.
I personally don’t know the answer so i can’t help