00:02
All right, so we have this equation f of x and this equation g of x and we'll figure out what x is going to be if you set them equal to each other so let's go ahead and do that and let's get rid of our fractions here by multiplying both sides by 3 and x so let's also multiply this side by x 3.
00:21
What that's going to do is it's going to cancel out this x cancel out that x cancel out that 3 and cancel out that 3.
00:27
So what we have left over is 3 times x plus 3 equals x times x minus 4.
00:35
And then we can go ahead and distribute here.
00:39
So we're going to have 3x plus 9 equals x squared minus 4x.
00:46
And let's go ahead and get everything on the same side of our equation.
00:50
So we're going to subtract 9 and subtract 3x.
00:56
We're going to have x squared minus 7x minus 9 equals 0.
01:05
And the easiest way to solve this is most likely the quadratic formula.
01:08
There's not an easy way to factor and then if we were to complete the square we just have fractions to work with...