00:01
The system to this solution, find the solution to this system.
00:04
In order to do that, you need to have the same number, different signs.
00:06
So i see a different sign here.
00:08
So i'm going to just go ahead and multiply the first one by a negative, by a two, not a negative two, because i already have the negative.
00:13
That's going to give me a 4x squared minus 16y cubed is equal to 38.
00:20
And now because of that, i can add straight down.
00:22
So i'm going to get 8x squared is equal to 72.
00:27
And now because of that as well, you just solve for x here.
00:32
Just solve for x, you divide by 8, and then you take the square root...