we are given

Since, we have to factor out -14
So, we will make both terms multiple of -14
so, we will multiply top and bottom of each terms by -14

we can also write as

now, we can factor out -14

now, we can simplify it
..............Answer
The answers are X=-4 and Y=3.
2(4a^2 +a +3)
Factor out the 2