Safari Live - Day 129 | National Geographic

There are many videos on Khan Academy where we talk about factoring polynomials, but what we’re going to do in this video is do a few more examples of factoring higher degree polynomials. So let’s start with a little bit of a warm-up. Let’s say that we wa…

So we have (6x^2 - 120x + 600 = 0). Like always, pause this video and see if you can solve for (x). If you can find the (X) values that satisfy this equation. All right, let’s work through this together. So the numbers here don’t seem like outlandish num…

In this video, we’re going to get even more appreciation for why the periodic table of elements is so useful. In particular, we’re going to focus on groups of the periodic table of elements. When we talk about a group, we’re just talking about a column. A…

We’re told this table defines function f. All right, for every x, they give us the corresponding f of x according to the table. Is f even, odd, or neither? So pause this video and see if you can figure that out on your own. All right, now let’s work on t…

The graph below shows the relationship between hours of exercise and hours of screen time for a group of five friends on Thursday. So if we look over here, we can see that here on this horizontal axis, when we’re going from the left to right, it says hour…

Picture this: You wake up one morning and you feel a little bit sick. No particular symptoms, just not 100%. So you go to the doctor and she also doesn’t know what’s going on with you, so she suggests they run a battery of tests and after a week goes by, …