What's b?

Blood type, b negative.

And so you see it's a pattern.

Some other figures. South Africa triple B plus. Botswana

So minus minus 2 is 2.

Plus or minus the square root of b squared.

So what are the solutions? t is equal to negatives b.

Is equal to 1 minus x squared over a squared.

And we know from the quadratic equation the solution to this is negative b let me do this in another color.

And then we can use the quadratic equation.

So, in this example, a is minus 10. b is minus 9, and c is 1.

I can probably reach him right now.

The asymptotes of this hyperbola are the lines y is equal to plus or minus b over a.

That's B.

We could see here. b is negative 9, a is negative 10. c is 1.

So let's add this up.

So this is these two terms that I'm adding together.

It is whole numbers plus negative of natural numbers

So let's write that first rule down.

And the other root would be 9 minus 11 over negative 20.

You could view this as negative two repeatedly added three times.

This is going to be equal to some stuff over 300.

And that works out, right?

So you subtract 8 from both sides.

So let's review.

Negative times a negative is a positive.

A negative times a positive is a negative.

So it's going to be five times ten. It's going to be fifty.

Plus negative two. which would be equal to well, negative two plus negative two is negative four, plus another negative two is negative six.

So if I were to say negative five times negative ten well, once again, negative times a negative.

And then finally what if it I had let me think of some good numbers minus 6 times minus 11.

That's a minus x.

So if I were to multiply I'll just switch colors for fun here

okay. pretty good, right?

Anode.

Let's do two times negative three, I want to make the negative into a different color.

So different signs mean negative.

Remember, different signs will get you a negative result.

We could be equal to it or greater than, but we have to be less than minus 4.

If I just said thirty (30) divided by five (5), I'd get a positive six (6).

Negative 1 times this is positive.

Negative 1 times this is negative.

You can view this as a negative 1 times all of this.

I'm doing it in pink, because it's the inverse.

That's minus 1 squared.