If you want to add a mathematical equation to your document, again, you can access that command through the Insert menu. So Insert, and we've got these two symbols here. You actually want the top one, which is equation, okay? And that will open up this box in the middle of your page and will have all these different commands along the top. So you've got various symbols you can use, like the weird and wonderful ones you don't necessarily have on your keyboard, such as does not equals and plus and minus are all sitting in there. On the right-hand side as well, you'll also have different kinds of menus for things like fractions, exponentials involving superscripts and subscripts and so on. Integral factors are in there as well. So you can pretty much do any mathematical equation you want to using this command. Now, there's actually a really cool keyboard shortcut to get here. I'm just gonna delete this. Click over there and then hit delete. And I'm just gonna show you how to do it the really quick way. And that is using the Alt + equals shortcut and that automatically creates the type equation here box. So if you wanna have a go at this yourself, first of all, just pause the video now and then we'll go through it together shortly. So there's two exercises there. One is to insert the WACC formula and another is to insert the formula for a quadratic equation to solve for X.

Good luck, and I'll be back in a few seconds. Okay, welcome back. Let's go through these two equations then and see how you got on. So we'll do the WACC formula first of all. Okay, now whenever you want to just insert text, so for instance, WACC, we just type it. So WACC equals, and you can use the equals symbol or you can click up here. It'll give you exactly the same symbol either way, look. So WACC equals, and again, we want equity over total capital. So I'm just gonna do capital E. Oh, and I want a divided by symbol next. That means I'm gonna need to use the fraction. So I'm gonna select the E, I'm gonna go to fraction up here and I'm gonna select the stacked fraction option. So E over C, well, let's use C for capital. So at the moment, I'm kind of at the bottom there. If I hit the right arrow now, it'll take me back to the normal level. And then I want to multiply that by the cost of equity. So there's a multiplication sign up here that I wanna use. And I'm just going to use KE for cost of equity. Now, I want my E to be a subscript. So I'm just going to hit this. I'm gonna select this here. Oops. And what I'm going to do is do K and then I'm gonna, oops, I'm gonna do K in there and E down here. There we go. That's better. So yeah, you will find that you may have to play around with it a bit to get it to look exactly how you want it. So that's okay now. Equity over capital multiplied by the cost of equity. Now we can add on the debt component. So we'll, again get it all the way to the right-hand side, and we then can add the plus sign. So again, you can use the plus sign from your keyboard or go back to the equation tab and use the plus sign that's in there as well. I think there is, yeah, there should be one here somewhere. Oh, I can't actually see that. Maybe they expect you to use the keyboard for that. Okay, either way, it doesn't matter. You've got a plus sign there. Right, so equity over capital times cost of equity plus, this time, we're gonna want to have debt over capital. So again, I'll select the D, use the down arrow to get to the second box. I'll use the side arrow to get back to the right. So debt over equity. We're gonna multiply that by the cost of debt. So again, we use the multiplication sign and this time, I want that script again. So I want the subscript. So we'll have the K and then the D in the subscript. And then finally, we're gonna multiply that by, so right arrow again, multiply that by one minus the tax rate. So T for tax, there we go. And so that's our WACC formula. Equity over capital, oops. And I've done something silly here. Look, so that should say debt over capital and I think that's okay. Great. Okay, so that's one formula. Let's insert another one then. So again, Alt + equals, and this is the quadratic equation now. So this is the one you might remember from school, X equals minus b plus or minus the square root of B squared minus 4ac all over 2a. So let's just type that out. X equals minus b, we have a plus or minus symbol up here. So we'll use that, plus or minus. We have a square root symbol as well. So we need to use that, the square root. Now we need to add some brackets. So we'll get the bracket from here. We'll just use this one at the top. Okay. So it's gonna be the square root of b squared. That needs to have a superscript. So there we go. And it's given me two bs again. It's taken that out. So I need to get rid of one of those bs. Whoops, get rid of that one there. There we go. B squared. Again, if you find yourself in the superscript or the subscript, you wanna get back to the normal level, just keep hitting right arrow. Eventually it'll put you to the right place. So b squared minus 4ac. And all of this needs to be divided by 2a. So let's select everything there and we'll select Fraction. And we'll just put 2a in here. And there we go. That is your formula for a quadratic equation. So if you can do those two, I'm pretty confident you'll be able to navigate your way around that menu in order to find the equations that you need. Now, one more thing. If you click on here, at the moment, it's taking up quite a bit of space. If you wanna put it onto one line, what you can do is select this equation options arrow at the bottom, and you can make it linear, okay? Or all linear. All linear will apply to all equations. Linear will just apply to one. So if I select all linear, then all the equations will now sit on one line. If I select professional or all professional, then I prefer the way they look like this, so I'm gonna leave them set as professional.