Please help I’ll give please please

20, 8, 3√6 (If you need anymore just comment)

Step-by-step explanation:

Let's start with √400

We start by factoring it

400: 4*100

These are two perfect squares. We find the square root of both of them and get 2*10 which is 20. So square root 400 is 20

∛512

Same thing 512: 8*64

Notice that 64=8*8 so 512 = 8^3 therefore the answer is 8

√54

54=9*6

Notice only 9 is a perfect square

So this gives us 3√6

And that's it!

(3,7)

Step-by-step explanation: