# Thread: HELP! Focus of conic equations.

1. ## HELP! Focus of conic equations.

How would i do these 2 problems...
1.)Find the focus of the conic equation :
x=y^2-4y+3

2.)4x^2-9y^2+16x+108y-344=0
Thanks

2. Originally Posted by emetty90
How would i do these 2 problems...
1.)Find the focus of the conic equation :
x=y^2-4y+3

2.)4x^2-9y^2+16x+108y-344=0
Thanks
see post #2 here

3. ok thanks, that helps, but i'm having trouble putting it into standard form....

4. Originally Posted by emetty90
ok thanks, that helps, but i'm having trouble putting it into standard form....
as in you are having trouble with completing the square, or did you not know that is what you are supposed to do?

for the first, complete the square for y on the right side

for the second, write as

$4(x^2 + 4x) - 9(y^2 - 12) = 344$

now complete the square for x and y separately within the relevant brackets

can you finish?