If a equals five radical two into a is equal to radical two X, what is the value of x? All right? Well, they gave us a is equal to five radical two. So we'll plug in that value for a into the second equation. So we will have two times five radical two is equal to radical two X, multiply that two throughout, you get 10 radical two is equal to radical two x. And you know what we do with radicals.

Right? Right. Well, you're totally right. I don't know what you said. But you have to square both sides. So when we squared both sides, we will get 100 because 10 squared is 100 times two, and that is equal to two x.

Okay? And now we just got to solve for x. That's 200 is equal to do x, and x is going to be when we divide by two on both sides. Just 100